MainMenuCommon.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
-->
<mainMenu>
    <!-- menuDocument can only contain 1 menu element, whose id is 
         implicitly "root_menu"
      -->
    <menuBar>
        <!-- Education -->
        <subMenu id="edu_menu">
            <modifyItem>
                <insertBefore>help_menu</insertBefore>
            </modifyItem>
            <label>Education</label>
            <scriptItem id="h.sidefxedu.eduhelppage">
                <label>Education Help Page</label>
                <scriptCode><![CDATA[
import sys, webbrowser
webbrowser.open(str(sys.argv[1]))]]>
                </scriptCode>
                <scriptArgs>'https://www.sidefx.com/docs/houdini20.0/education'</scriptArgs>
            </scriptItem>

            <scriptItem id="h.sidefxedu.labsquicktip">
                <label>Labs Quick Tips</label>
                <scriptCode>
                    <![CDATA[
from labsopui import quicktip
quicktip.ShowQuickTip()
                    ]]>
                </scriptCode>
            </scriptItem>

            <separatorItem id="separator_01"/>

            <scriptItem id="h.sidefxedu.parmdiff">
                <label>Parameter Diff</label>
                <scriptCode>
                    <![CDATA[
import pyper.widgets.diff as diffmodule

try:
  reload(diffmodule)
except NameError:
  from importlib import reload
  reload(diffmodule)

win = diffmodule.run()
hou.session.dummy = win
                    ]]>
                </scriptCode>
            </scriptItem>
        </subMenu>
    </menuBar>
</mainMenu>