Feature Request: access to double-tap UIMenuController menuItems

[wsa]

You've already added a menu item to search for documentation on a highlighted bit of code, and it occurred to me today that it'd be nice to be able to add 2-3 scripts to that menu myself, for certain common operations I do on highlighted words and text. Obviously there's limited space there, and I'm not sure what sort of a nuisance it would be to add this functionality, but I'd sure use it, both in Pythonista and Editorial.