Set switch_on_hover to true for the remaining menus

editor/plugins/cpu_particles_2d_editor_plugin.cpp

@@ -267,6 +267,7 @@ CPUParticles2DEditorPlugin::CPUParticles2DEditorPlugin(EditorNode *p_node) {
 	menu->get_popup()->add_item(TTR("Load Emission Mask"), MENU_LOAD_EMISSION_MASK);
 	//	menu->get_popup()->add_item(TTR("Clear Emission Mask"), MENU_CLEAR_EMISSION_MASK);
 	menu->set_text(TTR("Particles"));
+	menu->set_switch_on_hover(true);
 	toolbar->add_child(menu);
 
 	file = memnew(EditorFileDialog);

editor/plugins/cpu_particles_editor_plugin.cpp

@@ -101,6 +101,7 @@ CPUParticlesEditor::CPUParticlesEditor() {
 	particles_editor_hb = memnew(HBoxContainer);
 	SpatialEditor::get_singleton()->add_control_to_menu_panel(particles_editor_hb);
 	options = memnew(MenuButton);
+	options->set_switch_on_hover(true);
 	particles_editor_hb->add_child(options);
 	particles_editor_hb->hide();
 

editor/plugins/mesh_instance_editor_plugin.cpp

@@ -412,6 +412,7 @@ void MeshInstanceEditor::_bind_methods() {
 MeshInstanceEditor::MeshInstanceEditor() {
 
 	options = memnew(MenuButton);
+	options->set_switch_on_hover(true);
 	SpatialEditor::get_singleton()->add_control_to_menu_panel(options);
 
 	options->set_text(TTR("Mesh"));

editor/plugins/multimesh_editor_plugin.cpp

@@ -293,6 +293,7 @@ void MultiMeshEditor::_bind_methods() {
 MultiMeshEditor::MultiMeshEditor() {
 
 	options = memnew(MenuButton);
+	options->set_switch_on_hover(true);
 	SpatialEditor::get_singleton()->add_control_to_menu_panel(options);
 
 	options->set_text("MultiMesh");

editor/plugins/particles_2d_editor_plugin.cpp

@@ -375,6 +375,7 @@ Particles2DEditorPlugin::Particles2DEditorPlugin(EditorNode *p_node) {
 	menu->get_popup()->add_separator();
 	menu->get_popup()->add_item(TTR("Convert to CPUParticles"), MENU_OPTION_CONVERT_TO_CPU_PARTICLES);
 	menu->set_text(TTR("Particles"));
+	menu->set_switch_on_hover(true);
 	toolbar->add_child(menu);
 
 	file = memnew(EditorFileDialog);

editor/plugins/particles_editor_plugin.cpp

@@ -454,6 +454,7 @@ ParticlesEditor::ParticlesEditor() {
 	particles_editor_hb = memnew(HBoxContainer);
 	SpatialEditor::get_singleton()->add_control_to_menu_panel(particles_editor_hb);
 	options = memnew(MenuButton);
+	options->set_switch_on_hover(true);
 	particles_editor_hb->add_child(options);
 	particles_editor_hb->hide();