Or, I guess we could allow the plugin.xml to add additional menu entries with the additional menu name provided as a plugin parameter somehow?
Something like:
<addmenu>EditPCSS</addmenu>
The primary menu would always be the plugin name to maintain backwards compatibility but if these addmenu fields are found, then multiple menu entries are created such as:
PrettyPrinter
PrettyPrinter_EditPCSS
Obviously the lack of translation for menu items is already an issue and this would make it worse, but ...