I’ve created a script for creating context menus that does a bit more than the standard Studio plugin menu.
You can add separators, submenus, enable and disable menus, tick menu items, and add custom images. Most importantly, because this is all done using GUI it doesn’t suffer from some of the bugs that the Studio’s own plugin menus have.
This has only been tested in Studio, but shouldn’t be too hard for you to adapt to work in your games if you want to.