OPmenu.xml

<menuDocument>
	<!-- menuDocument can only contain 1 menu element, whose id is 
         implicitly "root_menu"
      -->
	<menu>
		<scriptItem id="expreditor_edit_python_code">
			<label>Edit python source code</label>
			<context>
				<expression>
					<![CDATA[
try:
  from HoudiniExprEditor import ParmWatcher
  return ParmWatcher.is_python_node(kwargs["node"])
except Exception as e:
  return False]]>
				</expression>
			</context>
			<scriptCode>
				<![CDATA[
from HoudiniExprEditor import ParmWatcher
try:
  reload(ParmWatcher)
except NameError:
  from importlib import reload
  reload(ParmWatcher)
ParmWatcher.add_watcher(kwargs["node"], type_="python_node")]]>
			</scriptCode>
		</scriptItem>
		<scriptItem id="expreditor_edit_extra_sections">
			<label>Edit Extra Sections Source Code</label>
			<insertAtIndex>49</insertAtIndex>
			<context>
				<expression>
					<![CDATA[
try:
  import os
  if os.environ.get("HOUDINI_EXPR_DISABLE_SECTIONS") == "1":
    return False
  from HoudiniExprEditor import ParmWatcher
  return len(ParmWatcher.get_extra_file_scripts(kwargs["node"])) >0
except Exception as e:
  return False]]>
				</expression>
			</context>
			<scriptCode>
				<![CDATA[
from HoudiniExprEditor import ParmWatcher
try:
  reload(ParmWatcher)
except NameError:
  from importlib import reload
  reload(ParmWatcher)
ParmWatcher.add_watcher_to_section(kwargs["node"])]]>
			</scriptCode>
		</scriptItem>
	</menu>
</menuDocument>