diff --git a/editor/editor_help.cpp b/editor/editor_help.cpp
index fd728dc39393..99305562ba26 100644
--- a/editor/editor_help.cpp
+++ b/editor/editor_help.cpp
@@ -3699,12 +3699,8 @@ void EditorHelpBit::set_custom_text(const String &p_type, const String &p_name,
 	}
 }
 
-void EditorHelpBit::prepend_description(const String &p_text) {
-	if (help_data.description.is_empty()) {
-		help_data.description = p_text;
-	} else {
-		help_data.description = p_text + "\n" + help_data.description;
-	}
+void EditorHelpBit::set_description(const String &p_text) {
+	help_data.description = p_text;
 
 	if (is_inside_tree()) {
 		_update_labels();
diff --git a/editor/editor_help.h b/editor/editor_help.h
index 76f9e71931a2..8d1fec713e89 100644
--- a/editor/editor_help.h
+++ b/editor/editor_help.h
@@ -311,7 +311,8 @@ class EditorHelpBit : public VBoxContainer {
 public:
 	void parse_symbol(const String &p_symbol);
 	void set_custom_text(const String &p_type, const String &p_name, const String &p_description);
-	void prepend_description(const String &p_text);
+	void set_description(const String &p_text);
+	_FORCE_INLINE_ String get_description() const { return help_data.description; }
 
 	void set_content_height_limits(float p_min, float p_max);
 	void update_content_height();
diff --git a/editor/editor_inspector.cpp b/editor/editor_inspector.cpp
index a9c5586ba2fa..89d15c0b6f3d 100644
--- a/editor/editor_inspector.cpp
+++ b/editor/editor_inspector.cpp
@@ -975,13 +975,17 @@ Control *EditorProperty::make_custom_tooltip(const String &p_text) const {
 			if (inspector) {
 				const String custom_description = inspector->get_custom_property_description(p_text);
 				if (!custom_description.is_empty()) {
-					help_bit->prepend_description(custom_description);
+					help_bit->set_description(custom_description);
 				}
 			}
 		}
 
 		if (!custom_warning.is_empty()) {
-			help_bit->prepend_description("[b][color=" + get_theme_color(SNAME("warning_color")).to_html(false) + "]" + custom_warning + "[/color][/b]");
+			String description = "[b][color=" + get_theme_color(SNAME("warning_color")).to_html(false) + "]" + custom_warning + "[/color][/b]";
+			if (!help_bit->get_description().is_empty()) {
+				description += "\n" + help_bit->get_description();
+			}
+			help_bit->set_description(description);
 		}
 
 		EditorHelpBitTooltip::show_tooltip(help_bit, const_cast<EditorProperty *>(this));
@@ -2857,7 +2861,11 @@ void EditorInspector::update_tree() {
 			vbox_per_path.clear();
 			editor_inspector_array_per_prefix.clear();
 
-			if (!show_categories) {
+			// `hint_script` should contain a native class name or a script path.
+			// Otherwise the category was probably added via `@export_category` or `_get_property_list()`.
+			const bool is_custom_category = p.hint_string.is_empty();
+
+			if ((is_custom_category && !show_custom_categories) || (!is_custom_category && !show_standard_categories)) {
 				continue;
 			}
 
@@ -2876,7 +2884,7 @@ void EditorInspector::update_tree() {
 				}
 				// Treat custom categories as second-level ones. Do not skip a normal category if it is followed by a custom one.
 				// Skip in the other 3 cases (normal -> normal, custom -> custom, custom -> normal).
-				if ((N->get().usage & PROPERTY_USAGE_CATEGORY) && (p.hint_string.is_empty() || !N->get().hint_string.is_empty())) {
+				if ((N->get().usage & PROPERTY_USAGE_CATEGORY) && (is_custom_category || !N->get().hint_string.is_empty())) {
 					valid = false;
 					break;
 				}
@@ -2891,10 +2899,8 @@ void EditorInspector::update_tree() {
 			main_vbox->add_child(category);
 			category_vbox = nullptr; //reset
 
-			// `hint_script` should contain a native class name or a script path.
-			// Otherwise the category was probably added via `@export_category` or `_get_property_list()`.
 			// Do not add an icon, do not change the current class (`doc_name`) for custom categories.
-			if (p.hint_string.is_empty()) {
+			if (is_custom_category) {
 				category->label = p.name;
 				category->set_tooltip_text(p.name);
 			} else {
@@ -3596,8 +3602,9 @@ void EditorInspector::set_autoclear(bool p_enable) {
 	autoclear = p_enable;
 }
 
-void EditorInspector::set_show_categories(bool p_show) {
-	show_categories = p_show;
+void EditorInspector::set_show_categories(bool p_show_standard, bool p_show_custom) {
+	show_standard_categories = p_show_standard;
+	show_custom_categories = p_show_custom;
 	update_tree();
 }
 
@@ -4151,7 +4158,7 @@ String EditorInspector::get_property_prefix() const {
 }
 
 void EditorInspector::add_custom_property_description(const String &p_class, const String &p_property, const String &p_description) {
-	const String key = vformat("property|%s|%s|", p_class, p_property);
+	const String key = vformat("property|%s|%s", p_class, p_property);
 	custom_property_descriptions[key] = p_description;
 }
 
diff --git a/editor/editor_inspector.h b/editor/editor_inspector.h
index 8fe690fddfc2..3cbee5c50231 100644
--- a/editor/editor_inspector.h
+++ b/editor/editor_inspector.h
@@ -494,7 +494,8 @@ class EditorInspector : public ScrollContainer {
 	//
 
 	LineEdit *search_box = nullptr;
-	bool show_categories = false;
+	bool show_standard_categories = false;
+	bool show_custom_categories = false;
 	bool hide_script = true;
 	bool hide_metadata = true;
 	bool use_doc_hints = false;
@@ -610,7 +611,7 @@ class EditorInspector : public ScrollContainer {
 
 	void set_autoclear(bool p_enable);
 
-	void set_show_categories(bool p_show);
+	void set_show_categories(bool p_show_standard, bool p_show_custom);
 	void set_use_doc_hints(bool p_enable);
 	void set_hide_script(bool p_hide);
 	void set_hide_metadata(bool p_hide);
diff --git a/editor/inspector_dock.cpp b/editor/inspector_dock.cpp
index b0750ac0ff76..2965a8a90495 100644
--- a/editor/inspector_dock.cpp
+++ b/editor/inspector_dock.cpp
@@ -787,7 +787,7 @@ InspectorDock::InspectorDock(EditorData &p_editor_data) {
 	inspector = memnew(EditorInspector);
 	add_child(inspector);
 	inspector->set_autoclear(true);
-	inspector->set_show_categories(true);
+	inspector->set_show_categories(true, true);
 	inspector->set_v_size_flags(Control::SIZE_EXPAND_FILL);
 	inspector->set_use_doc_hints(true);
 	inspector->set_hide_script(false);
diff --git a/editor/plugins/tiles/tile_set_atlas_source_editor.cpp b/editor/plugins/tiles/tile_set_atlas_source_editor.cpp
index 2878472c7b7a..9d46047ec2e6 100644
--- a/editor/plugins/tiles/tile_set_atlas_source_editor.cpp
+++ b/editor/plugins/tiles/tile_set_atlas_source_editor.cpp
@@ -2555,7 +2555,7 @@ TileSetAtlasSourceEditor::TileSetAtlasSourceEditor() {
 
 	tile_inspector = memnew(EditorInspector);
 	tile_inspector->set_v_size_flags(SIZE_EXPAND_FILL);
-	tile_inspector->set_show_categories(true);
+	tile_inspector->set_show_categories(false, true);
 	tile_inspector->set_use_doc_hints(true);
 	tile_inspector->set_use_folding(true);
 	tile_inspector->connect("property_selected", callable_mp(this, &TileSetAtlasSourceEditor::_inspector_property_selected));
@@ -2609,7 +2609,7 @@ TileSetAtlasSourceEditor::TileSetAtlasSourceEditor() {
 
 	atlas_source_inspector = memnew(EditorInspector);
 	atlas_source_inspector->set_v_size_flags(SIZE_EXPAND_FILL);
-	atlas_source_inspector->set_show_categories(true);
+	atlas_source_inspector->set_show_categories(false, true);
 	atlas_source_inspector->set_use_doc_hints(true);
 	atlas_source_inspector->add_inspector_plugin(memnew(TileSourceInspectorPlugin));
 	middle_vbox_container->add_child(atlas_source_inspector);