yes you can but it is not easy because you have to contribute it to both ribbon-based and menu-based
user interface. It is done for example in ScriptingRegistration.updateMenus(ModeController,
ScriptingConfiguration) where we want to add scripts to the menu. To be honest I do not understand
the ribbon API myself, but I think the people knowing it read this mailing list too.
> I'm working at Flower Platform extension for Freeplane.
> We want to add some entries in the Freeplane menu.
> As far as I can see, this can be done by adding the name of the new ribbon in the file
> 'resources_en.properties' and by adding the new ribbon with its actions in the file
> Can we do this programmatically, from our plugin?
> Best regards,