Calling the existing OOTB menu option URL is probably not officially supported
Why not? There is a rename URL listed in the UI Customization Guide. Is that not what you're talking about?Thanks for all the other suggestions, too. Might try some of them.
The rename URL in the UICG is supported - however it doesn't provide a UI (to prompt what you want to rename the file or directory to) - the OOTB menu URL (which you could probably figure out by right-clicking or hovering or something) is what I was referring to as not being officially supported for custom implementation purposes (seems silly to me, but I'm just letting you know)