diff --git a/qute.ls/com.redhat.qute.ls/src/main/java/com/redhat/qute/ls/commons/TextDocument.java b/qute.ls/com.redhat.qute.ls/src/main/java/com/redhat/qute/ls/commons/TextDocument.java
index 19258e716..c47f6b3cb 100644
--- a/qute.ls/com.redhat.qute.ls/src/main/java/com/redhat/qute/ls/commons/TextDocument.java
+++ b/qute.ls/com.redhat.qute.ls/src/main/java/com/redhat/qute/ls/commons/TextDocument.java
@@ -194,16 +194,24 @@ public void update(List<TextDocumentContentChangeEvent> changes) {
 						TextDocumentContentChangeEvent changeEvent = changes.get(i);
 						Range range = changeEvent.getRange();
 						int length = 0;
-
+						int startOffset = -1;
 						if (range != null) {
-							length = changeEvent.getRangeLength().intValue();
+							if (changeEvent.getRangeLength() != null) {
+								// rangeLength is defined, use it
+								length = changeEvent.getRangeLength().intValue();
+							} else {
+								// rangeLength is not defined, compute it
+								startOffset = offsetAt(range.getStart());
+								int endOffset = offsetAt(range.getEnd());
+								length = endOffset - startOffset;
+							}
 						} else {
 							// range is optional and if not given, the whole file content is replaced
 							length = buffer.length();
 							range = new Range(positionAt(0), positionAt(length));
 						}
 						String text = changeEvent.getText();
-						int startOffset = offsetAt(range.getStart());
+						startOffset = startOffset != 1 ? startOffset : offsetAt(range.getStart());
 						buffer.replace(startOffset, startOffset + length, text);
 						lineTracker.replace(startOffset, length, text);
 					}
diff --git a/qute.ls/com.redhat.qute.ls/src/main/java/com/redhat/qute/services/codeactions/QuteCodeActionForUndefinedNamespace.java b/qute.ls/com.redhat.qute.ls/src/main/java/com/redhat/qute/services/codeactions/QuteCodeActionForUndefinedNamespace.java
index af318e1aa..8ca378ef8 100644
--- a/qute.ls/com.redhat.qute.ls/src/main/java/com/redhat/qute/services/codeactions/QuteCodeActionForUndefinedNamespace.java
+++ b/qute.ls/com.redhat.qute.ls/src/main/java/com/redhat/qute/services/codeactions/QuteCodeActionForUndefinedNamespace.java
@@ -26,6 +26,7 @@
 import com.redhat.qute.parser.template.Node;
 import com.redhat.qute.parser.template.Template;
 import com.redhat.qute.project.QuteProject;
+import com.redhat.qute.services.commands.QuteClientCommandConstants;
 import com.redhat.qute.services.diagnostics.QuteErrorCode;
 
 /**
@@ -55,10 +56,13 @@ public void doCodeActions(CodeActionRequest request, List<CompletableFuture<Void
 			// CodeAction(s) to replace text with similar suggestions
 			doCodeActionsForSimilarValues(part, template, diagnostic, codeActions);
 
-			// CodeAction to set validation severity to ignore
-			doCodeActionToSetIgnoreSeverity(template, diagnostic, QuteErrorCode.UndefinedNamespace, codeActions,
-					UNDEFINED_NAMESPACE_SEVERITY_SETTING);
-
+			boolean canUpdateConfiguration = request.getSharedSettings().getCommandCapabilities()
+					.isCommandSupported(QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE);
+			if (canUpdateConfiguration) {
+				// CodeAction to set validation severity to ignore
+				doCodeActionToSetIgnoreSeverity(template, diagnostic, QuteErrorCode.UndefinedNamespace, codeActions,
+						UNDEFINED_NAMESPACE_SEVERITY_SETTING);
+			}
 		} catch (BadLocationException e) {
 			LOGGER.log(Level.SEVERE, "Creation of undefined namespace code action failed", e);
 		}
diff --git a/qute.ls/com.redhat.qute.ls/src/main/java/com/redhat/qute/services/codeactions/QuteCodeActionForUndefinedObject.java b/qute.ls/com.redhat.qute.ls/src/main/java/com/redhat/qute/services/codeactions/QuteCodeActionForUndefinedObject.java
index f05355bd2..2fa93466e 100644
--- a/qute.ls/com.redhat.qute.ls/src/main/java/com/redhat/qute/services/codeactions/QuteCodeActionForUndefinedObject.java
+++ b/qute.ls/com.redhat.qute.ls/src/main/java/com/redhat/qute/services/codeactions/QuteCodeActionForUndefinedObject.java
@@ -44,6 +44,7 @@
 import com.redhat.qute.project.datamodel.ExtendedDataModelParameter;
 import com.redhat.qute.project.datamodel.ExtendedDataModelTemplate;
 import com.redhat.qute.project.datamodel.resolvers.ValueResolver;
+import com.redhat.qute.services.commands.QuteClientCommandConstants;
 import com.redhat.qute.services.diagnostics.QuteErrorCode;
 import com.redhat.qute.utils.StringUtils;
 import com.redhat.qute.utils.UserTagUtils;
@@ -83,9 +84,13 @@ public void doCodeActions(CodeActionRequest request, List<CompletableFuture<Void
 			// CodeAction to append ?? to object to make it optional
 			doCodeActionToAddOptionalSuffix(template, diagnostic, codeActions);
 
-			// CodeAction to set validation severity to ignore
-			doCodeActionToSetIgnoreSeverity(template, diagnostic, QuteErrorCode.UndefinedObject, codeActions,
-					UNDEFINED_OBJECT_SEVERITY_SETTING);
+			boolean canUpdateConfiguration = request.getSharedSettings().getCommandCapabilities()
+					.isCommandSupported(QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE);
+			if (canUpdateConfiguration) {
+				// CodeAction to set validation severity to ignore
+				doCodeActionToSetIgnoreSeverity(template, diagnostic, QuteErrorCode.UndefinedObject, codeActions,
+						UNDEFINED_OBJECT_SEVERITY_SETTING);
+			}
 
 		} catch (BadLocationException e) {
 			LOGGER.log(Level.SEVERE, "Creation of undefined object code action failed", e);
diff --git a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/QuteAssert.java b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/QuteAssert.java
index ffcc0e004..49bcae9ab 100644
--- a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/QuteAssert.java
+++ b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/QuteAssert.java
@@ -117,7 +117,7 @@ public class QuteAssert {
 												 */;
 
 	public static final int SECTION_SNIPPET_SIZE = 15 /* #each, #for, ... #fragment ... */ + USER_TAG_SIZE;
-	
+
 	public static final int RESOLVERS_SIZE = 9;
 
 	public static String getFileUri(String templateFile) {
@@ -606,7 +606,7 @@ private static void testCodeLensFor(String value, String fileUri, String templat
 		template.setTemplateId(templateId);
 
 		QuteLanguageService languageService = new QuteLanguageService(projectRegistry);
-		SharedSettings sharedSettings = createSharedSettings();
+		SharedSettings sharedSettings = createSharedSettings(false);
 		List<? extends CodeLens> actual = languageService.getCodeLens(template, sharedSettings, () -> {
 		}).get();
 		assertCodeLens(actual, expected);
@@ -647,7 +647,7 @@ private static void testInlayHintFor(String value, String fileUri, String templa
 		Template template = createTemplate(value, fileUri, projectUri, templateBaseDir, projectRegistry);
 		template.setTemplateId(templateId);
 
-		SharedSettings settings = createSharedSettings();
+		SharedSettings settings = createSharedSettings(false);
 		if (inlayHintSettings != null) {
 			settings.getInlayHintSettings().update(inlayHintSettings);
 		}
@@ -689,9 +689,14 @@ public static void assertInlayHint(List<? extends InlayHint> actual, InlayHint..
 
 	// ------------------- CodeAction assert
 
+	public static void testCodeActionsWithConfigurationUpdateFor(String value, Diagnostic diagnostic, CodeAction... expected)
+			throws Exception {
+		testCodeActionsFor(value, diagnostic, createSharedSettings(true), expected);
+	}
+	
 	public static void testCodeActionsFor(String value, Diagnostic diagnostic, CodeAction... expected)
 			throws Exception {
-		testCodeActionsFor(value, diagnostic, new SharedSettings(), expected);
+		testCodeActionsFor(value, diagnostic, createSharedSettings(false), expected);
 	}
 
 	public static void testCodeActionsFor(String value, Diagnostic diagnostic, SharedSettings settings,
@@ -1022,12 +1027,16 @@ private static Template createTemplate(String value, String fileUri, String proj
 		return template;
 	}
 
-	private static SharedSettings createSharedSettings() {
+	public static SharedSettings createSharedSettings(boolean withConfigurationUpdate) {
 		SharedSettings sharedSettings = new SharedSettings();
 		CommandCapabilities commandCapabilities = new CommandCapabilities();
 		CommandKindCapabilities kinds = new CommandKindCapabilities(
-				Arrays.asList(QuteClientCommandConstants.COMMAND_JAVA_DEFINITION,
-						QuteClientCommandConstants.COMMAND_SHOW_REFERENCES));
+				withConfigurationUpdate ? 
+						Arrays.asList(QuteClientCommandConstants.COMMAND_JAVA_DEFINITION,
+						QuteClientCommandConstants.COMMAND_SHOW_REFERENCES,
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE) : 
+							Arrays.asList(QuteClientCommandConstants.COMMAND_JAVA_DEFINITION,
+									QuteClientCommandConstants.COMMAND_SHOW_REFERENCES));
 		commandCapabilities.setCommandKind(kinds);
 		sharedSettings.getCommandCapabilities().setCapabilities(commandCapabilities);
 		return sharedSettings;
diff --git a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionForSimilarTextSuggestionsForUndefinedNamespaceTest.java b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionForSimilarTextSuggestionsForUndefinedNamespaceTest.java
index cfc33ecf3..808785430 100644
--- a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionForSimilarTextSuggestionsForUndefinedNamespaceTest.java
+++ b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionForSimilarTextSuggestionsForUndefinedNamespaceTest.java
@@ -16,6 +16,7 @@
 import static com.redhat.qute.QuteAssert.d;
 import static com.redhat.qute.QuteAssert.te;
 import static com.redhat.qute.QuteAssert.testCodeActionsFor;
+import static com.redhat.qute.QuteAssert.testCodeActionsWithConfigurationUpdateFor;
 import static com.redhat.qute.QuteAssert.testDiagnosticsFor;
 
 import org.eclipse.lsp4j.Diagnostic;
@@ -27,7 +28,8 @@
 import com.redhat.qute.services.diagnostics.QuteErrorCode;
 
 /**
- * Test code action for similar text suggestions for {@link QuteErrorCode#UndefinedNamespace}.
+ * Test code action for similar text suggestions for
+ * {@link QuteErrorCode#UndefinedNamespace}.
  *
  */
 public class QuteCodeActionForSimilarTextSuggestionsForUndefinedNamespaceTest {
@@ -42,12 +44,26 @@ public void similarTextSuggestionQuickFixForUndefinedNamespace() throws Exceptio
 
 		testDiagnosticsFor(template, d);
 		testCodeActionsFor(template, d, //
+				ca(d, te(0, 1, 0, 5, "inject")));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
 				ca(d, te(0, 1, 0, 5, "inject")), //
 				ca(d, c("Ignore `UndefinedNamespace` problem.", //
 						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
 						"qute.validation.undefinedNamespace.severity", //
 						"test.qute", //
 						ConfigurationItemEditType.update, "ignore", //
+						d)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
 						d)));
 	}
 
@@ -60,13 +76,26 @@ public void noSimilarTextSuggestionQuickFixForUndefinedNamespace() throws Except
 				DiagnosticSeverity.Warning);
 
 		testDiagnosticsFor(template, d);
-		testCodeActionsFor(template, d, //
+		testCodeActionsFor(template, d);
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
 				ca(d, c("Ignore `UndefinedNamespace` problem.", //
 						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
 						"qute.validation.undefinedNamespace.severity", //
 						"test.qute", //
 						ConfigurationItemEditType.update, "ignore", //
-						d)));
+						d)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
+						d)));		
 	}
 
 }
diff --git a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionForSimilarTextSuggestionsForUndefinedObjectTest.java b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionForSimilarTextSuggestionsForUndefinedObjectTest.java
index 6a7efe478..13900a52d 100644
--- a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionForSimilarTextSuggestionsForUndefinedObjectTest.java
+++ b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionForSimilarTextSuggestionsForUndefinedObjectTest.java
@@ -16,6 +16,7 @@
 import static com.redhat.qute.QuteAssert.d;
 import static com.redhat.qute.QuteAssert.te;
 import static com.redhat.qute.QuteAssert.testCodeActionsFor;
+import static com.redhat.qute.QuteAssert.testCodeActionsWithConfigurationUpdateFor;
 import static com.redhat.qute.QuteAssert.testDiagnosticsFor;
 
 import org.eclipse.lsp4j.Diagnostic;
@@ -45,6 +46,10 @@ public void similarTextSuggestionQuickFixForUndefinedObject() throws Exception {
 
 		testDiagnosticsFor(template, d);
 		testCodeActionsFor(template, d, //
+				ca(d, te(1, 1, 1, 5, "string")), //
+				ca(d, te(0, 0, 0, 0, "{@java.lang.String stri}\r\n")), //
+				ca(d, te(1, 5, 1, 5, "??")));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
 				ca(d, te(1, 1, 1, 5, "string")), //
 				ca(d, te(0, 0, 0, 0, "{@java.lang.String stri}\r\n")), //
 				ca(d, te(1, 5, 1, 5, "??")), //
@@ -53,7 +58,20 @@ public void similarTextSuggestionQuickFixForUndefinedObject() throws Exception {
 						"qute.validation.undefinedObject.severity", //
 						"test.qute", //
 						ConfigurationItemEditType.update, "ignore", //
+						d)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
 						d)));
+
 	}
 
 	@Test
@@ -68,6 +86,10 @@ public void similarTextSuggestionCenterQuickFixForUndefinedObject() throws Excep
 
 		testDiagnosticsFor(template, d);
 		testCodeActionsFor(template, d, //
+				ca(d, te(1, 1, 1, 5, "string")), //
+				ca(d, te(0, 0, 0, 0, "{@java.lang.String trin}\r\n")), //
+				ca(d, te(1, 5, 1, 5, "??")));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
 				ca(d, te(1, 1, 1, 5, "string")), //
 				ca(d, te(0, 0, 0, 0, "{@java.lang.String trin}\r\n")), //
 				ca(d, te(1, 5, 1, 5, "??")), //
@@ -76,7 +98,20 @@ public void similarTextSuggestionCenterQuickFixForUndefinedObject() throws Excep
 						"qute.validation.undefinedObject.severity", //
 						"test.qute", //
 						ConfigurationItemEditType.update, "ignore", //
+						d)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
 						d)));
+
 	}
 
 	@Test
@@ -90,6 +125,10 @@ public void notSmilarTextSuggestionQuickFixForUndefinedObject() throws Exception
 
 		testDiagnosticsFor(template, d);
 		testCodeActionsFor(template, d, //
+				ca(d, te(0, 0, 0, 0, "{@java.lang.String abc}" + //
+						System.lineSeparator())), //
+				ca(d, te(0, 4, 0, 4, "??")));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
 				ca(d, te(0, 0, 0, 0, "{@java.lang.String abc}" + //
 						System.lineSeparator())), //
 				ca(d, te(0, 4, 0, 4, "??")), //
@@ -98,7 +137,20 @@ public void notSmilarTextSuggestionQuickFixForUndefinedObject() throws Exception
 						"qute.validation.undefinedObject.severity", //
 						"test.qute", //
 						ConfigurationItemEditType.update, "ignore", //
+						d)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
 						d)));
+
 	}
 
 	@Test
@@ -116,6 +168,10 @@ public void smilarTextSuggestionQuickFixForUndefinedObjectInMethodPart() throws
 
 		testDiagnosticsFor(template, d);
 		testCodeActionsFor(template, d, //
+				ca(d, te(2, 21, 2, 25, "index")), //
+				ca(d, te(0, 0, 0, 0, "{@java.lang.String inde}\r\n")), //
+				ca(d, te(2, 25, 2, 25, "??")));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
 				ca(d, te(2, 21, 2, 25, "index")), //
 				ca(d, te(0, 0, 0, 0, "{@java.lang.String inde}\r\n")), //
 				ca(d, te(2, 25, 2, 25, "??")), //
@@ -124,7 +180,20 @@ public void smilarTextSuggestionQuickFixForUndefinedObjectInMethodPart() throws
 						"qute.validation.undefinedObject.severity", //
 						"test.qute", //
 						ConfigurationItemEditType.update, "ignore", //
+						d)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
 						d)));
+
 	}
 
 	@Test
@@ -140,6 +209,10 @@ public void similarTextSuggestionQuickFixForUndefinedObjectUsingLoopSectionMetad
 
 		testDiagnosticsFor(template, d);
 		testCodeActionsFor(template, d, //
+				ca(d, te(2, 2, 2, 5, "item")), //
+				ca(d, te(0, 0, 0, 0, "{@java.lang.String ite}\r\n")), //
+				ca(d, te(2, 5, 2, 5, "??")));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
 				ca(d, te(2, 2, 2, 5, "item")), //
 				ca(d, te(0, 0, 0, 0, "{@java.lang.String ite}\r\n")), //
 				ca(d, te(2, 5, 2, 5, "??")), //
@@ -148,6 +221,18 @@ public void similarTextSuggestionQuickFixForUndefinedObjectUsingLoopSectionMetad
 						"qute.validation.undefinedObject.severity", //
 						"test.qute", //
 						ConfigurationItemEditType.update, "ignore", //
+						d)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
 						d)));
 	}
 
@@ -165,6 +250,11 @@ public void similarTextSuggestionQuickFixForUndefinedObjectUsingLoopSectionMetad
 
 		testDiagnosticsFor(template, d);
 		testCodeActionsFor(template, d, //
+				ca(d, te(2, 2, 2, 5, "item")), //
+				ca(d, te(2, 2, 2, 5, "items")), //
+				ca(d, te(0, 0, 0, 0, "{@java.lang.String ite}\r\n")), //
+				ca(d, te(2, 5, 2, 5, "??")));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
 				ca(d, te(2, 2, 2, 5, "item")), //
 				ca(d, te(2, 2, 2, 5, "items")), //
 				ca(d, te(0, 0, 0, 0, "{@java.lang.String ite}\r\n")), //
@@ -174,7 +264,19 @@ public void similarTextSuggestionQuickFixForUndefinedObjectUsingLoopSectionMetad
 						"qute.validation.undefinedObject.severity", //
 						"test.qute", //
 						ConfigurationItemEditType.update, "ignore", //
-						d)));
+						d)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
+						d)));		
 	}
 
 }
diff --git a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionForSimilarTextSuggestionsForUnknownMethodTest.java b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionForSimilarTextSuggestionsForUnknownMethodTest.java
index 53475ca3c..42eff6344 100644
--- a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionForSimilarTextSuggestionsForUnknownMethodTest.java
+++ b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionForSimilarTextSuggestionsForUnknownMethodTest.java
@@ -11,16 +11,20 @@
 *******************************************************************************/
 package com.redhat.qute.services.codeaction;
 
+import static com.redhat.qute.QuteAssert.c;
 import static com.redhat.qute.QuteAssert.ca;
 import static com.redhat.qute.QuteAssert.d;
 import static com.redhat.qute.QuteAssert.te;
 import static com.redhat.qute.QuteAssert.testCodeActionsFor;
+import static com.redhat.qute.QuteAssert.testCodeActionsWithConfigurationUpdateFor;
 import static com.redhat.qute.QuteAssert.testDiagnosticsFor;
 
 import org.eclipse.lsp4j.Diagnostic;
 import org.eclipse.lsp4j.DiagnosticSeverity;
 import org.junit.jupiter.api.Test;
 
+import com.redhat.qute.ls.commons.client.ConfigurationItemEditType;
+import com.redhat.qute.services.commands.QuteClientCommandConstants;
 import com.redhat.qute.services.diagnostics.JavaBaseTypeOfPartData;
 import com.redhat.qute.services.diagnostics.QuteErrorCode;
 
@@ -45,6 +49,20 @@ public void similarTextSuggestionQuickFixForUndefinedMethod() throws Exception {
 		testDiagnosticsFor(template, d);
 		testCodeActionsFor(template, d, //
 				ca(d, te(1, 8, 1, 13, "charAt")));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
+				ca(d, te(1, 8, 1, 13, "charAt")),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
+						d)));
 	}
 
 	@Test
@@ -61,6 +79,20 @@ public void similarTextSuggestionQuickFixForUndefinedMethodWithResolver() throws
 		testDiagnosticsFor(template, d);
 		testCodeActionsFor(template, d, //
 				ca(d, te(1, 8, 1, 13, "orEmpty")));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
+				ca(d, te(1, 8, 1, 13, "orEmpty")),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
+						d)));
 	}
 
 	@Test
@@ -77,6 +109,20 @@ public void similarTextSuggestionQuickFixForUndefinedMethodFromExtendedType() th
 		testDiagnosticsFor(template, d);
 		testCodeActionsFor(template, d, //
 				ca(d, te(1, 6, 1, 12, "convert")));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
+				ca(d, te(1, 6, 1, 12, "convert")),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
+						d)));
 	}
 
 	@Test
@@ -92,6 +138,19 @@ public void noSimilarTextSuggestionQuickFixForUndefinedMethod() throws Exception
 
 		testDiagnosticsFor(template, d);
 		testCodeActionsFor(template, d);
+		testCodeActionsWithConfigurationUpdateFor(template, d,
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
+						d)));
 	}
 
 	@Test
@@ -107,6 +166,21 @@ public void similarTextSuggestionQuickFixForUndefinedMethodWithNamespace() throw
 		testDiagnosticsFor(template, d);
 		testCodeActionsFor(template, d, //
 				ca(d, te(0, 10, 0, 15, "charAt")));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
+				ca(d, te(0, 10, 0, 15, "charAt")),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
+						d)));
+
 	}
 
 	@Test
@@ -123,6 +197,20 @@ public void similarTextSuggestionQuickFixForUndefinedMethodFromClassWithCyclicIn
 		testDiagnosticsFor(template, d);
 		testCodeActionsFor(template, d, //
 				ca(d, te(1, 8, 1, 14, "convert")));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
+				ca(d, te(1, 8, 1, 14, "convert")),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
+						d)));
 	}
 
 }
diff --git a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionForSimilarTextSuggestionsForUnknownPropertyTest.java b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionForSimilarTextSuggestionsForUnknownPropertyTest.java
index 05ed48aac..294a13f4d 100644
--- a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionForSimilarTextSuggestionsForUnknownPropertyTest.java
+++ b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionForSimilarTextSuggestionsForUnknownPropertyTest.java
@@ -11,11 +11,13 @@
 *******************************************************************************/
 package com.redhat.qute.services.codeaction;
 
+import static com.redhat.qute.QuteAssert.c;
 import static com.redhat.qute.QuteAssert.ca;
 import static com.redhat.qute.QuteAssert.cad;
 import static com.redhat.qute.QuteAssert.d;
 import static com.redhat.qute.QuteAssert.te;
 import static com.redhat.qute.QuteAssert.testCodeActionsFor;
+import static com.redhat.qute.QuteAssert.testCodeActionsWithConfigurationUpdateFor;
 import static com.redhat.qute.QuteAssert.testDiagnosticsFor;
 
 import org.eclipse.lsp4j.Diagnostic;
@@ -24,7 +26,9 @@
 
 import com.redhat.qute.commons.GenerateMissingJavaMemberParams;
 import com.redhat.qute.commons.GenerateMissingJavaMemberParams.MemberType;
+import com.redhat.qute.ls.commons.client.ConfigurationItemEditType;
 import com.redhat.qute.project.QuteQuickStartProject;
+import com.redhat.qute.services.commands.QuteClientCommandConstants;
 import com.redhat.qute.services.diagnostics.JavaBaseTypeOfPartData;
 import com.redhat.qute.services.diagnostics.QuteErrorCode;
 
@@ -61,6 +65,31 @@ public void similarWithJavaField() throws Exception {
 						QuteQuickStartProject.PROJECT_URI, "org.acme.foo.TemplateExtensions")), //
 				cad(d, new GenerateMissingJavaMemberParams(MemberType.CreateTemplateExtension, "nme", "org.acme.Item",
 						QuteQuickStartProject.PROJECT_URI)));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
+				ca(d, te(1, 6, 1, 9, "name")), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.Field, "nme", "org.acme.Item",
+						QuteQuickStartProject.PROJECT_URI)), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.Getter, "nme", "org.acme.Item",
+						QuteQuickStartProject.PROJECT_URI)), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.AppendTemplateExtension, "nme", "org.acme.Item",
+						QuteQuickStartProject.PROJECT_URI, "org.acme.TemplateExtensions")), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.AppendTemplateExtension, "nme", "org.acme.Item",
+						QuteQuickStartProject.PROJECT_URI, "org.acme.foo.TemplateExtensions")), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.CreateTemplateExtension, "nme", "org.acme.Item",
+						QuteQuickStartProject.PROJECT_URI)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
+						d)));
+
 	}
 
 	@Test
@@ -89,6 +118,30 @@ public void similarWithJavaMethod() throws Exception {
 						"org.acme.Item", QuteQuickStartProject.PROJECT_URI, "org.acme.foo.TemplateExtensions")), //
 				cad(d, new GenerateMissingJavaMemberParams(MemberType.CreateTemplateExtension, "avilable",
 						"org.acme.Item", QuteQuickStartProject.PROJECT_URI)));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
+				ca(d, te(1, 6, 1, 14, "available")), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.Field, "avilable", "org.acme.Item",
+						QuteQuickStartProject.PROJECT_URI)), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.Getter, "avilable", "org.acme.Item",
+						QuteQuickStartProject.PROJECT_URI)), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.AppendTemplateExtension, "avilable",
+						"org.acme.Item", QuteQuickStartProject.PROJECT_URI, "org.acme.TemplateExtensions")), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.AppendTemplateExtension, "avilable",
+						"org.acme.Item", QuteQuickStartProject.PROJECT_URI, "org.acme.foo.TemplateExtensions")), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.CreateTemplateExtension, "avilable",
+						"org.acme.Item", QuteQuickStartProject.PROJECT_URI)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
+						d)));
 	}
 
 	@Test
@@ -118,6 +171,30 @@ public void similarWithResolver() throws Exception {
 						"org.acme.Item", QuteQuickStartProject.PROJECT_URI, "org.acme.foo.TemplateExtensions")), //
 				cad(d, new GenerateMissingJavaMemberParams(MemberType.CreateTemplateExtension, "discountedPrce",
 						"org.acme.Item", QuteQuickStartProject.PROJECT_URI)));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
+				ca(d, te(1, 6, 1, 20, "discountedPrice")), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.Field, "discountedPrce", "org.acme.Item",
+						QuteQuickStartProject.PROJECT_URI)), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.Getter, "discountedPrce", "org.acme.Item",
+						QuteQuickStartProject.PROJECT_URI)), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.AppendTemplateExtension, "discountedPrce",
+						"org.acme.Item", QuteQuickStartProject.PROJECT_URI, "org.acme.TemplateExtensions")), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.AppendTemplateExtension, "discountedPrce",
+						"org.acme.Item", QuteQuickStartProject.PROJECT_URI, "org.acme.foo.TemplateExtensions")), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.CreateTemplateExtension, "discountedPrce",
+						"org.acme.Item", QuteQuickStartProject.PROJECT_URI)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
+						d)));
 	}
 
 	@Test
@@ -140,12 +217,42 @@ public void similarWithJavaFieldWithClassWithCyclicInheritance() throws Exceptio
 						QuteQuickStartProject.PROJECT_URI)), //
 				cad(d, new GenerateMissingJavaMemberParams(MemberType.Getter, "nme", "org.acme.qute.cyclic.ClassA",
 						QuteQuickStartProject.PROJECT_URI)), //
-				cad(d, new GenerateMissingJavaMemberParams(MemberType.AppendTemplateExtension, "nme", "org.acme.qute.cyclic.ClassA",
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.AppendTemplateExtension, "nme",
+						"org.acme.qute.cyclic.ClassA",
 						QuteQuickStartProject.PROJECT_URI, "org.acme.TemplateExtensions")), //
-				cad(d, new GenerateMissingJavaMemberParams(MemberType.AppendTemplateExtension, "nme", "org.acme.qute.cyclic.ClassA",
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.AppendTemplateExtension, "nme",
+						"org.acme.qute.cyclic.ClassA",
 						QuteQuickStartProject.PROJECT_URI, "org.acme.foo.TemplateExtensions")), //
-				cad(d, new GenerateMissingJavaMemberParams(MemberType.CreateTemplateExtension, "nme", "org.acme.qute.cyclic.ClassA",
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.CreateTemplateExtension, "nme",
+						"org.acme.qute.cyclic.ClassA",
 						QuteQuickStartProject.PROJECT_URI)));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
+				ca(d, te(1, 8, 1, 11, "name")), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.Field, "nme", "org.acme.qute.cyclic.ClassA",
+						QuteQuickStartProject.PROJECT_URI)), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.Getter, "nme", "org.acme.qute.cyclic.ClassA",
+						QuteQuickStartProject.PROJECT_URI)), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.AppendTemplateExtension, "nme",
+						"org.acme.qute.cyclic.ClassA",
+						QuteQuickStartProject.PROJECT_URI, "org.acme.TemplateExtensions")), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.AppendTemplateExtension, "nme",
+						"org.acme.qute.cyclic.ClassA",
+						QuteQuickStartProject.PROJECT_URI, "org.acme.foo.TemplateExtensions")), //
+				cad(d, new GenerateMissingJavaMemberParams(MemberType.CreateTemplateExtension, "nme",
+						"org.acme.qute.cyclic.ClassA",
+						QuteQuickStartProject.PROJECT_URI)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
+						d)));
 	}
 
 }
diff --git a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionWithSettingsTest.java b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionWithSettingsTest.java
index bd7df0261..b8a7b5691 100644
--- a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionWithSettingsTest.java
+++ b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteCodeActionWithSettingsTest.java
@@ -16,6 +16,7 @@
 import static com.redhat.qute.QuteAssert.d;
 import static com.redhat.qute.QuteAssert.te;
 import static com.redhat.qute.QuteAssert.testCodeActionsFor;
+import static com.redhat.qute.QuteAssert.testCodeActionsWithConfigurationUpdateFor;
 import static com.redhat.qute.QuteAssert.testDiagnosticsFor;
 
 import java.util.Arrays;
@@ -51,6 +52,10 @@ public void withoutDisableValidationQuickFixUndefinedObject() throws Exception {
 
 		testDiagnosticsFor(template, d);
 		testCodeActionsFor(template, d, //
+				ca(d, te(0, 0, 0, 0, "{@java.lang.String item}" + //
+						System.lineSeparator())), //
+				ca(d, te(0, 5, 0, 5, "??")));
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
 				ca(d, te(0, 0, 0, 0, "{@java.lang.String item}" + //
 						System.lineSeparator())), //
 				ca(d, te(0, 5, 0, 5, "??")), //
@@ -59,7 +64,20 @@ public void withoutDisableValidationQuickFixUndefinedObject() throws Exception {
 						"qute.validation.undefinedObject.severity", //
 						"test.qute", //
 						ConfigurationItemEditType.update, "ignore", //
+						d)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
 						d)));
+								
 	}
 
 	@Test
@@ -72,13 +90,26 @@ public void withoutDisableValidationQuickFixUndefinedNamespace() throws Exceptio
 				DiagnosticSeverity.Warning);
 
 		testDiagnosticsFor(template, d);
-		testCodeActionsFor(template, d, //
+		testCodeActionsFor(template, d);
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
 				ca(d, c("Ignore `UndefinedNamespace` problem.", //
 						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
 						"qute.validation.undefinedNamespace.severity", //
 						"test.qute", //
 						ConfigurationItemEditType.update, "ignore", //
-						d)));
+						d)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
+						d)));				
 	}
 
 	@Test
diff --git a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteGenerateMissingMemberCodeActionTest.java b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteGenerateMissingMemberCodeActionTest.java
index c9a0ee10b..7116a3b39 100644
--- a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteGenerateMissingMemberCodeActionTest.java
+++ b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/codeaction/QuteGenerateMissingMemberCodeActionTest.java
@@ -11,6 +11,8 @@
 *******************************************************************************/
 package com.redhat.qute.services.codeaction;
 
+import static com.redhat.qute.QuteAssert.c;
+import static com.redhat.qute.QuteAssert.ca;
 import static com.redhat.qute.QuteAssert.cad;
 import static com.redhat.qute.QuteAssert.d;
 import static com.redhat.qute.QuteAssert.testCodeActionsFor;
@@ -26,9 +28,11 @@
 
 import com.redhat.qute.commons.GenerateMissingJavaMemberParams;
 import com.redhat.qute.commons.GenerateMissingJavaMemberParams.MemberType;
+import com.redhat.qute.ls.commons.client.ConfigurationItemEditType;
 import com.redhat.qute.project.QuteQuickStartProject;
 import com.redhat.qute.services.codeactions.CodeActionResolverKind;
 import com.redhat.qute.services.codeactions.CodeActionUnresolvedData;
+import com.redhat.qute.services.commands.QuteClientCommandConstants;
 import com.redhat.qute.services.diagnostics.JavaBaseTypeOfPartData;
 import com.redhat.qute.services.diagnostics.QuteErrorCode;
 import com.redhat.qute.settings.SharedSettings;
@@ -58,6 +62,7 @@ public void userGeneratedClass() throws Exception {
 						QuteQuickStartProject.PROJECT_URI, "org.acme.foo.TemplateExtensions")), //
 				cad(d, new GenerateMissingJavaMemberParams(MemberType.CreateTemplateExtension, "asdf", "org.acme.Item",
 						QuteQuickStartProject.PROJECT_URI)));
+
 	}
 
 	@Test
diff --git a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/diagnostics/QuteDiagnosticsInExpressionTest.java b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/diagnostics/QuteDiagnosticsInExpressionTest.java
index a0605908d..38e6a57ef 100644
--- a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/diagnostics/QuteDiagnosticsInExpressionTest.java
+++ b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/diagnostics/QuteDiagnosticsInExpressionTest.java
@@ -16,6 +16,7 @@
 import static com.redhat.qute.QuteAssert.d;
 import static com.redhat.qute.QuteAssert.te;
 import static com.redhat.qute.QuteAssert.testCodeActionsFor;
+import static com.redhat.qute.QuteAssert.testCodeActionsWithConfigurationUpdateFor;
 import static com.redhat.qute.QuteAssert.testDiagnosticsFor;
 
 import org.eclipse.lsp4j.Diagnostic;
@@ -63,13 +64,7 @@ public void booleanLiteral() throws Exception {
 		testCodeActionsFor(template, d, //
 				ca(d, te(0, 0, 0, 0, "{@java.lang.String trueX}" + //
 						System.lineSeparator())), //
-				ca(d, te(0, 6, 0, 6, "??")), //
-				ca(d, c("Ignore `UndefinedObject` problem.", //
-						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
-						"qute.validation.undefinedObject.severity", //
-						"test.qute", //
-						ConfigurationItemEditType.update, "ignore", //
-						d)));
+				ca(d, te(0, 6, 0, 6, "??")));
 
 		template = "{false}";
 		testDiagnosticsFor(template);
@@ -82,13 +77,7 @@ public void booleanLiteral() throws Exception {
 		testCodeActionsFor(template, d, //
 				ca(d, te(0, 0, 0, 0, "{@java.lang.String falseX}" + //
 						System.lineSeparator())), //
-				ca(d, te(0, 7, 0, 7, "??")), //
-				ca(d, c("Ignore `UndefinedObject` problem.", //
-						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
-						"qute.validation.undefinedObject.severity", //
-						"test.qute", //
-						ConfigurationItemEditType.update, "ignore", //
-						d)));
+				ca(d, te(0, 7, 0, 7, "??")));
 	}
 
 	@Test
@@ -104,13 +93,7 @@ public void nullLiteral() throws Exception {
 		testCodeActionsFor(template, d, //
 				ca(d, te(0, 0, 0, 0, "{@java.lang.String nullX}" + //
 						System.lineSeparator())), //
-				ca(d, te(0, 6, 0, 6, "??")), //
-				ca(d, c("Ignore `UndefinedObject` problem.", //
-						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
-						"qute.validation.undefinedObject.severity", //
-						"test.qute", //
-						ConfigurationItemEditType.update, "ignore", //
-						d)));
+				ca(d, te(0, 6, 0, 6, "??")));
 	}
 
 	@Test
@@ -135,13 +118,7 @@ public void integerLiteral() throws Exception {
 		testCodeActionsFor(template, d, //
 				ca(d, te(0, 0, 0, 0, "{@java.lang.String 123X}" + //
 						System.lineSeparator())), //
-				ca(d, te(0, 5, 0, 5, "??")), //
-				ca(d, c("Ignore `UndefinedObject` problem.", //
-						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
-						"qute.validation.undefinedObject.severity", //
-						"test.qute", //
-						ConfigurationItemEditType.update, "ignore", //
-						d)));
+				ca(d, te(0, 5, 0, 5, "??")));
 	}
 
 	@Test
@@ -157,13 +134,7 @@ public void longLiteral() throws Exception {
 		testCodeActionsFor(template, d, //
 				ca(d, te(0, 0, 0, 0, "{@java.lang.String 123LX}" + //
 						System.lineSeparator())), //
-				ca(d, te(0, 6, 0, 6, "??")), //
-				ca(d, c("Ignore `UndefinedObject` problem.", //
-						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
-						"qute.validation.undefinedObject.severity", //
-						"test.qute", //
-						ConfigurationItemEditType.update, "ignore", //
-						d)));
+				ca(d, te(0, 6, 0, 6, "??")));
 	}
 
 	@Test
@@ -179,13 +150,7 @@ public void undefinedObject() throws Exception {
 		testCodeActionsFor(template, d, //
 				ca(d, te(0, 0, 0, 0, "{@java.lang.String item}" + //
 						System.lineSeparator())), //
-				ca(d, te(0, 5, 0, 5, "??")), //
-				ca(d, c("Ignore `UndefinedObject` problem.", //
-						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
-						"qute.validation.undefinedObject.severity", //
-						"test.qute", //
-						ConfigurationItemEditType.update, "ignore", //
-						d)));
+				ca(d, te(0, 5, 0, 5, "??")));
 	}
 
 	@Test
@@ -201,13 +166,7 @@ public void undefinedUnderscoreObject() throws Exception {
 		testCodeActionsFor(template, d, //
 				ca(d, te(0, 0, 0, 0, "{@java.lang.String nested-content}" + //
 						System.lineSeparator())), //
-				ca(d, te(0, 15, 0, 15, "??")), //
-				ca(d, c("Ignore `UndefinedObject` problem.", //
-						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
-						"qute.validation.undefinedObject.severity", //
-						"test.qute", //
-						ConfigurationItemEditType.update, "ignore", //
-						d)));
+				ca(d, te(0, 15, 0, 15, "??")));
 	}
 
 	@Test
@@ -367,13 +326,7 @@ public void elvisOperator() throws Exception {
 		testCodeActionsFor(template, d, //
 				ca(d, te(0, 0, 0, 0, "{@java.lang.String person}" + //
 						System.lineSeparator())), //
-				ca(d, te(0, 7, 0, 7, "??")), //
-				ca(d, c("Ignore `UndefinedObject` problem.", //
-						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
-						"qute.validation.undefinedObject.severity", //
-						"test.qute", //
-						ConfigurationItemEditType.update, "ignore", //
-						d)));
+				ca(d, te(0, 7, 0, 7, "??")));
 	}
 
 	@Test
@@ -390,12 +343,25 @@ public void undefineNamespace() throws Exception {
 		Diagnostic d = d(1, 1, 1, 8, QuteErrorCode.UndefinedNamespace, "No namespace resolver found for: `dataXXX`.",
 				DiagnosticSeverity.Warning);
 		testDiagnosticsFor(template, d);
-		testCodeActionsFor(template, d, //
+		testCodeActionsFor(template, d);
+		testCodeActionsWithConfigurationUpdateFor(template, d, //
 				ca(d, c("Ignore `UndefinedNamespace` problem.", //
 						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
 						"qute.validation.undefinedNamespace.severity", //
 						"test.qute", //
 						ConfigurationItemEditType.update, "ignore", //
+						d)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
 						d)));
 	}
 
@@ -733,7 +699,8 @@ public void undefinedObjectPartWithKwownMethodResolver() throws Exception {
 		testDiagnosticsFor(template, //
 				d(0, 1, 0, 6, QuteErrorCode.UndefinedObject, "`items` cannot be resolved to an object.",
 						DiagnosticSeverity.Warning),
-				d(0, 7, 0, 17, QuteErrorCode.UnknownMethod, "`getByIndex` cannot be resolved or is not a method of `null` Java type.",
+				d(0, 7, 0, 17, QuteErrorCode.UnknownMethod,
+						"`getByIndex` cannot be resolved or is not a method of `null` Java type.",
 						DiagnosticSeverity.Error));
 	}
 }
diff --git a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/diagnostics/QuteDiagnosticsInExpressionWithForSectionTest.java b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/diagnostics/QuteDiagnosticsInExpressionWithForSectionTest.java
index 45669f63d..cc4354b31 100644
--- a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/diagnostics/QuteDiagnosticsInExpressionWithForSectionTest.java
+++ b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/diagnostics/QuteDiagnosticsInExpressionWithForSectionTest.java
@@ -65,6 +65,18 @@ public void undefinedObjectInElseBlock() throws Exception {
 						"qute.validation.undefinedObject.severity", //
 						"test.qute", //
 						ConfigurationItemEditType.update, "ignore", //
+						d)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
 						d)));
 
 	}
@@ -92,7 +104,20 @@ public void undefinedObject() throws Exception {
 						"qute.validation.undefinedObject.severity", //
 						"test.qute", //
 						ConfigurationItemEditType.update, "ignore", //
+						d)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
 						d)));
+
 	}
 
 	@Test
diff --git a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/diagnostics/QuteDiagnosticsInExpressionWithIfSectionTest.java b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/diagnostics/QuteDiagnosticsInExpressionWithIfSectionTest.java
index 02fa0c75e..26e1014d6 100644
--- a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/diagnostics/QuteDiagnosticsInExpressionWithIfSectionTest.java
+++ b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/diagnostics/QuteDiagnosticsInExpressionWithIfSectionTest.java
@@ -11,7 +11,6 @@
 *******************************************************************************/
 package com.redhat.qute.services.diagnostics;
 
-import static com.redhat.qute.QuteAssert.c;
 import static com.redhat.qute.QuteAssert.ca;
 import static com.redhat.qute.QuteAssert.d;
 import static com.redhat.qute.QuteAssert.te;
@@ -22,9 +21,6 @@
 import org.eclipse.lsp4j.DiagnosticSeverity;
 import org.junit.jupiter.api.Test;
 
-import com.redhat.qute.ls.commons.client.ConfigurationItemEditType;
-import com.redhat.qute.services.commands.QuteClientCommandConstants;
-
 /**
  * Test with #if section
  *
@@ -63,22 +59,7 @@ public void undefinedObject() throws Exception {
 		testDiagnosticsFor(template, d1, d2);
 		testCodeActionsFor(template, d1, //
 				ca(d1, te(0, 0, 0, 0, "{@java.lang.String item}\r\n")), //
-				ca(d1, te(0, 9, 0, 9, "??")), //
-				ca(d1, c("Ignore `UndefinedObject` problem.", //
-						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
-						"qute.validation.undefinedObject.severity", //
-						"test.qute", //
-						ConfigurationItemEditType.update, "ignore", //
-						d1)));
-		testCodeActionsFor(template, d2, //
-				ca(d2, te(0, 0, 0, 0, "{@java.lang.String item}\r\n")), //
-				ca(d2, te(0, 28, 0, 28, "??")), //
-				ca(d2, c("Ignore `UndefinedObject` problem.", //
-						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
-						"qute.validation.undefinedObject.severity", //
-						"test.qute", //
-						ConfigurationItemEditType.update, "ignore", //
-						d2)));
+				ca(d1, te(0, 9, 0, 9, "??")));
 	}
 
 	@Test
diff --git a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/diagnostics/QuteDiagnosticsInExpressionWithLetSectionTest.java b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/diagnostics/QuteDiagnosticsInExpressionWithLetSectionTest.java
index 3706b442f..4779f776b 100644
--- a/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/diagnostics/QuteDiagnosticsInExpressionWithLetSectionTest.java
+++ b/qute.ls/com.redhat.qute.ls/src/test/java/com/redhat/qute/services/diagnostics/QuteDiagnosticsInExpressionWithLetSectionTest.java
@@ -77,7 +77,20 @@ public void undefinedObject() throws Exception {
 						"qute.validation.undefinedObject.severity", //
 						"test.qute", //
 						ConfigurationItemEditType.update, "ignore", //
+						d)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
 						d)));
+
 	}
 
 	@Test
@@ -105,7 +118,20 @@ public void autoClose() throws Exception {
 						"qute.validation.undefinedObject.severity", //
 						"test.qute", //
 						ConfigurationItemEditType.update, "ignore", //
+						d)),
+				ca(d, c("Exclude this file from validation.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.excluded", //
+						"test.qute", //
+						ConfigurationItemEditType.add, "test.qute", //
+						d)),
+				ca(d, c("Disable Qute validation for the `qute-quickstart` project.", //
+						QuteClientCommandConstants.COMMAND_CONFIGURATION_UPDATE, //
+						"qute.validation.enabled", //
+						"test.qute", //
+						ConfigurationItemEditType.update, false, //
 						d)));
+
 	}
 
 	@Test