designer/resources/META-INF/designer-androidstudio.xml

<!--
  ~ Copyright (C) 2020 The Android Open Source Project
  ~
  ~ Licensed under the Apache License, Version 2.0 (the "License");
  ~ you may not use this file except in compliance with the License.
  ~ You may obtain a copy of the License at
  ~
  ~      http://www.apache.org/licenses/LICENSE-2.0
  ~
  ~ Unless required by applicable law or agreed to in writing, software
  ~ distributed under the License is distributed on an "AS IS" BASIS,
  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  ~ See the License for the specific language governing permissions and
  ~ limitations under the License.
  -->
<idea-plugin>
  <extensions defaultExtensionNs="com.intellij">
    <!-- Disables the floating split/code/design selector by overriding the corresponding registry flag. -->
    <registryKey key="ide.text.editor.with.preview.show.floating.toolbar" defaultValue="false"
                 description="Show floating toolbar with layouts instead of permanent toolbar"/>
  </extensions>

  <actions>
    <action
        id="LayoutEditor.HelpAssistant"
        class="com.android.tools.idea.uibuilder.actions.LayoutEditorHelpAssistantAction"
        icon="StudioIcons.Common.HELP"
        text="Show Help Panel"
        description="Show/Hide Help Panel for Layout Editor">
    </action>
    <action
        id="LayoutEditor.HelpAssistant.Full"
        class="com.android.tools.idea.uibuilder.actions.LayoutEditorHelpAssistantAction"
        icon="StudioIcons.Common.HELP"
        text="Show Help Panel"
        description="Show/Hide Help Panel for Layout Editor">
    </action>
    <action
        id="LayoutEditor.HelpAssistant.ConstraintLayout"
        class="com.android.tools.idea.uibuilder.actions.LayoutEditorHelpAssistantAction"
        text="Constraint Layout Help Panel"
        description="Create Help Panel for Constraint Layout Editor">
    </action>
    <action
        id="LayoutEditor.HelpAssistant.MotionLayout"
        class="com.android.tools.idea.uibuilder.actions.LayoutEditorHelpAssistantAction"
        text="Motion Layout Help Panel"
        description="Create Help Panel for Motion Layout Editor">
    </action>
  </actions>
</idea-plugin>