diff --git a/utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/settings/Settings.kt b/utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/settings/Settings.kt
index 72c8affffd..661fcd3471 100644
--- a/utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/settings/Settings.kt
+++ b/utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/settings/Settings.kt
@@ -63,7 +63,8 @@ class Settings(val project: Project) : PersistentStateComponent<Settings.State>
         var fuzzingValue: Double = 0.05,
         var runGeneratedTestsWithCoverage: Boolean = false,
         var commentStyle: JavaDocCommentStyle = JavaDocCommentStyle.defaultItem,
-        var enableSummariesGeneration: Boolean = UtSettings.enableSummariesGeneration
+        var enableSummariesGeneration: Boolean = UtSettings.enableSummariesGeneration,
+        var enableExperimentalLanguagesSupport: Boolean = false,
     ) {
         constructor(model: GenerateTestsModel) : this(
             sourceRootHistory = model.sourceRootHistory,
@@ -155,6 +156,8 @@ class Settings(val project: Project) : PersistentStateComponent<Settings.State>
 
     val forceStaticMocking: ForceStaticMocking get() = state.forceStaticMocking
 
+    val experimentalLanguagesSupport: Boolean get () = state.enableExperimentalLanguagesSupport
+
     val treatOverflowAsError: TreatOverflowAsError get() = state.treatOverflowAsError
 
     val parametrizedTestSource: ParametrizedTestSource get() = state.parametrizedTestSource
diff --git a/utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/settings/SettingsWindow.kt b/utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/settings/SettingsWindow.kt
index 8ad2cfeba3..14661839ce 100644
--- a/utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/settings/SettingsWindow.kt
+++ b/utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/settings/SettingsWindow.kt
@@ -18,11 +18,6 @@ import com.intellij.ui.layout.withValueBinding
 import com.intellij.util.castSafelyTo
 import com.intellij.util.ui.UIUtil
 import com.intellij.util.ui.components.BorderLayoutPanel
-import javax.swing.DefaultComboBoxModel
-import javax.swing.JCheckBox
-import javax.swing.JPanel
-import javax.swing.JSlider
-import kotlin.reflect.KClass
 import org.utbot.framework.UtSettings
 import org.utbot.framework.codegen.domain.ForceStaticMocking
 import org.utbot.framework.codegen.domain.HangingTestsTimeout
@@ -34,6 +29,11 @@ import org.utbot.framework.plugin.api.TreatOverflowAsError
 import org.utbot.framework.plugin.api.isSummarizationCompatible
 import org.utbot.intellij.plugin.ui.components.CodeGenerationSettingItemRenderer
 import org.utbot.intellij.plugin.util.showSettingsEditor
+import javax.swing.DefaultComboBoxModel
+import javax.swing.JCheckBox
+import javax.swing.JPanel
+import javax.swing.JSlider
+import kotlin.reflect.KClass
 
 class SettingsWindow(val project: Project) {
     private val settings = project.service<Settings>()
@@ -44,6 +44,7 @@ class SettingsWindow(val project: Project) {
     private lateinit var runInspectionAfterTestGenerationCheckBox: JCheckBox
     private lateinit var forceMockCheckBox: JCheckBox
     private lateinit var enableSummarizationGenerationCheckBox: JCheckBox
+    private lateinit var enableExperimentalLanguagesCheckBox: JCheckBox
 
     val panel: JPanel = panel {
         row("Generated test language:") {
@@ -164,6 +165,23 @@ class SettingsWindow(val project: Project) {
             }
         }
 
+        row {
+            cell {
+                enableExperimentalLanguagesCheckBox = checkBox("Experimental languages support")
+                    .onApply {
+                        settings.state.enableExperimentalLanguagesSupport =
+                            enableExperimentalLanguagesCheckBox.isSelected
+                    }
+                    .onReset {
+                        enableExperimentalLanguagesCheckBox.isSelected =
+                            settings.experimentalLanguagesSupport == true
+                    }
+                    .onIsModified { enableExperimentalLanguagesCheckBox.isSelected xor settings.experimentalLanguagesSupport }
+                    .apply { ContextHelpLabel.create("Enable JavaScript and Python if IDE supports them")() }
+                    .component
+            }
+        }
+
         row("Classes to be forcedly mocked:") {}
         row {
             val excludeTableCellBuilder = excludeTable.component(CCFlags.grow)
diff --git a/utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/ui/actions/GenerateTestsAction.kt b/utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/ui/actions/GenerateTestsAction.kt
index b06d0c0598..7d32d7e2f1 100644
--- a/utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/ui/actions/GenerateTestsAction.kt
+++ b/utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/ui/actions/GenerateTestsAction.kt
@@ -2,7 +2,9 @@ package org.utbot.intellij.plugin.ui.actions
 
 import com.intellij.openapi.actionSystem.AnAction
 import com.intellij.openapi.actionSystem.AnActionEvent
+import com.intellij.openapi.components.service
 import org.utbot.intellij.plugin.language.agnostic.LanguageAssistant
+import org.utbot.intellij.plugin.settings.Settings
 
 class GenerateTestsAction : AnAction() {
     override fun actionPerformed(e: AnActionEvent) {
@@ -11,10 +13,16 @@ class GenerateTestsAction : AnAction() {
 
     override fun update(e: AnActionEvent) {
         val languageAssistant = LanguageAssistant.get(e)
-        if (languageAssistant == null) {
+        if (languageAssistant == null || !accessByProjectSettings(e)) {
             e.presentation.isEnabled = false
         } else {
             languageAssistant.update(e)
         }
     }
-}
\ No newline at end of file
+
+    private fun accessByProjectSettings(e: AnActionEvent): Boolean {
+        val experimentalLanguageSetting = e.project?.service<Settings>()?.experimentalLanguagesSupport
+        val languagePackageName = LanguageAssistant.get(e)?.toString()
+        return experimentalLanguageSetting == true || languagePackageName?.contains("JvmLanguageAssistant") == true
+    }
+}
diff --git a/utbot-js/src/main/kotlin/api/JsUtModelConstructor.kt b/utbot-js/src/main/kotlin/api/JsUtModelConstructor.kt
index 5101612b97..799dac9975 100644
--- a/utbot-js/src/main/kotlin/api/JsUtModelConstructor.kt
+++ b/utbot-js/src/main/kotlin/api/JsUtModelConstructor.kt
@@ -1,12 +1,5 @@
 package api
 
-import fuzzer.providers.JsObjectModelProvider
-import org.utbot.framework.concrete.contructors.UtModelConstructorInterface
-import org.utbot.framework.plugin.api.ClassId
-import org.utbot.framework.plugin.api.UtAssembleModel
-import org.utbot.framework.plugin.api.UtExecutableCallModel
-import org.utbot.framework.plugin.api.UtModel
-import org.utbot.framework.plugin.api.UtStatementModel
 import framework.api.js.JsClassId
 import framework.api.js.JsEmptyClassId
 import framework.api.js.JsNullModel
@@ -14,6 +7,12 @@ import framework.api.js.JsPrimitiveModel
 import framework.api.js.JsUndefinedModel
 import framework.api.js.util.jsErrorClassId
 import framework.api.js.util.jsUndefinedClassId
+import fuzzer.providers.JsObjectModelProvider
+import org.utbot.framework.concrete.constructors.UtModelConstructorInterface
+import org.utbot.framework.plugin.api.ClassId
+import org.utbot.framework.plugin.api.UtAssembleModel
+import org.utbot.framework.plugin.api.UtExecutableCallModel
+import org.utbot.framework.plugin.api.UtModel
 
 class JsUtModelConstructor : UtModelConstructorInterface {
 
diff --git a/utbot-js/src/main/kotlin/fuzzer/providers/JsObjectModelProvider.kt b/utbot-js/src/main/kotlin/fuzzer/providers/JsObjectModelProvider.kt
index aab8245e57..810757cf35 100644
--- a/utbot-js/src/main/kotlin/fuzzer/providers/JsObjectModelProvider.kt
+++ b/utbot-js/src/main/kotlin/fuzzer/providers/JsObjectModelProvider.kt
@@ -11,8 +11,8 @@ import org.utbot.fuzzer.FuzzedParameter
 import org.utbot.fuzzer.FuzzedValue
 import org.utbot.fuzzer.ModelProvider
 import org.utbot.fuzzer.ModelProvider.Companion.yieldValue
-import org.utbot.fuzzer.TooManyCombinationsException
 import org.utbot.fuzzer.fuzz
+import org.utbot.fuzzing.utils.TooManyCombinationsException
 import java.util.concurrent.atomic.AtomicInteger
 import java.util.function.IntSupplier
 
@@ -87,4 +87,4 @@ object JsObjectModelProvider : ModelProvider {
     }
 
 
-}
\ No newline at end of file
+}