workbench/mps-editor/source/META-INF/MPSEditor.xml

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<idea-plugin>

  <applicationListeners>
    <listener class="jetbrains.mps.nodeEditor.EditorSettingsUISettingsListener" topic="com.intellij.ide.ui.UISettingsListener"/>
  </applicationListeners>

  <extensionPoints>
    <extensionPoint qualifiedName="jetbrains.mps.NodeEditorFactory"
                    area="IDEA_PROJECT"
                    interface="jetbrains.mps.ide.editor.NodeEditorFactory"/>
    <extensionPoint qualifiedName="jetbrains.mps.nodeStructureViewProvider"
                    interface="jetbrains.mps.ide.editor.NodeStructureViewProvider"/>
    <extensionPoint qualifiedName="com.intellij.mps.editorWarningsProvider"
                    interface="jetbrains.mps.ide.editor.warningPanel.EditorWarningsProvider"/>
    <extensionPoint qualifiedName="com.intellij.mps.IntentionActionsProvider"
                    interface="jetbrains.mps.nodeEditor.IntentionActionsProvider"/>
    <extensionPoint qualifiedName="jetbrains.mps.editor.highlighter.contributor"
                    interface="jetbrains.mps.nodeEditor.HighlighterContribution"
                    area="IDEA_PROJECT"/>
  </extensionPoints>

  <projectListeners>
    <listener class="jetbrains.mps.ide.editor.icons.NodeIconUpdater"
              topic="jetbrains.mps.nodefs.NodeFileEventListener"
              activeInHeadlessMode="false"/>

    <!-- next 2 listeners work together with MPSEditorWarningsManager project service, registered below -->
    <listener class="jetbrains.mps.ide.editor.warningPanel.MPSEditorWarningsManager$EditorManagerListener"
              topic="com.intellij.openapi.fileEditor.FileEditorManagerListener"
              activeInHeadlessMode="false" activeInTestMode="false" />
    <listener class="jetbrains.mps.ide.editor.warningPanel.MPSEditorWarningsManager$FileStatusListener"
              topic="com.intellij.openapi.vcs.FileStatusListener"
              activeInHeadlessMode="false" activeInTestMode="false" />
  </projectListeners>

  <extensions defaultExtensionNs="com.intellij">
    <!-- requested by FileBasedIndexImpl, so, to make start-up more flat, also preload -->
    <applicationService serviceInterface="com.intellij.openapi.fileEditor.FileDocumentManager" overrides="true" preload="true"
                        serviceImplementation="jetbrains.mps.ide.editor.MPSFileDocumentManagerImpl"/>
    <applicationService serviceImplementation="jetbrains.mps.nodeEditor.EditorSettings"/>
    <applicationService serviceImplementation="jetbrains.mps.intentions.IntentionsManager"/>
    <applicationService serviceImplementation="jetbrains.mps.nodeEditor.documentation.MPSDocumentationManager"/>
    <applicationService serviceImplementation="jetbrains.mps.nodeEditor.cells.contextAssistant.ContextAssistantSettings"/>

    <projectService serviceImplementation="jetbrains.mps.nodeEditor.hintsSettings.ConceptEditorHintSettingsComponent" />
    <projectService serviceImplementation="jetbrains.mps.ide.editor.EditorTrackService" />
    <projectService serviceImplementation="jetbrains.mps.nodeEditor.documentation.MPSDocumentationToolWindowManager"/>
    <projectService serviceImplementation="jetbrains.mps.ide.editor.NodeEditorSModelChangeListener" preload="true"/>

    <projectService serviceInterface="jetbrains.mps.ide.search.SearchHistoryStorage" serviceImplementation="jetbrains.mps.nodeEditor.SearchHistoryComponent"/>

    <!-- works in conjunction with project listeners, above. -->
    <projectService serviceImplementation="jetbrains.mps.ide.editor.warningPanel.MPSEditorWarningsManager" />

    <projectService serviceInterface="jetbrains.mps.nodeEditor.Highlighter"
                    serviceImplementation="jetbrains.mps.nodeEditor.Highlighter"
                    headlessImplementation="jetbrains.mps.nodeEditor.EmptyHighlighter"/>
    <!-- No idea if there's any reason to keep serviceInterface == serviceImplementation, just leave it as it was with project component -->

    <fileEditorProvider implementation="jetbrains.mps.ide.editor.MPSFileNodeEditorProvider"/>

    <fileIconProvider implementation="jetbrains.mps.ide.editor.icons.NodeFileIconProvider"/>
    <mps.editorWarningsProvider implementation="jetbrains.mps.ide.editor.warningPanel.TransientModelWarningsProvider"/>
    <mps.editorWarningsProvider implementation="jetbrains.mps.ide.editor.warningPanel.PackagedModelWarningsProvider"/>
    <mps.editorWarningsProvider implementation="jetbrains.mps.ide.editor.warningPanel.ModelProblemsProvider"/>
    <mps.editorWarningsProvider implementation="jetbrains.mps.ide.editor.warningPanel.UnresolvedModelImportsProvider"/>

    <customizableActionGroupProvider implementation="jetbrains.mps.ide.editor.MPSEditorCustomizableActionGroupProvider"/>
    <!--Editor-->
    <applicationConfigurable groupId="editor" groupWeight="200" instance="jetbrains.mps.nodeEditor.EditorSettingsConfigurable"
                             bundle="jetbrains.mps.nodeEditor.resources.EditorSettingsBundle" key="title.editor.settings"
                             id="mps.editor.settings" order="before preferences.editor"/>
    <!--Editor Hints-->
    <projectConfigurable groupId="editor" groupWeight="180" dynamic="true"
                         instance="jetbrains.mps.nodeEditor.hintsSettings.ConceptEditorHintConfigurable"
                         displayName="MPS Editor Hints" order="after preferences.sourceCode" nonDefaultProject="true"/>
  </extensions>

  <extensions defaultExtensionNs="jetbrains.mps">
    <componentPluginFactory implementation="jetbrains.mps.ide.editor.MPSEditorPlugin$Factory"/>
    <editor.highlighter.contributor implementation="jetbrains.mps.ide.editor.MPSValidationComponent" />
  </extensions>

  <actions>
    <action id="MPS.Editor.ShowIntentionMenu" class="com.intellij.openapi.actionSystem.EmptyAction" text="Show Intention Popup">
      <keyboard-shortcut first-keystroke="alt ENTER" keymap="$default"/>
    </action>
  </actions>
</idea-plugin>