Create your own pie menus

I think blender would benefit a huge upgrade by simply granting the user to create their own pie menus without touching code.

One way to make this work might be to have a button on the quick favorites menu that allows you to take some of the favorites and put them on a pie menu. like 'add to pie menu'.

or

maybe you simply add to pie menu with right click > make a new pie menu > assign a shortcut.

and > add to existing pie menu

This would be a huge step up for intermediate to advanced blender users who don't know python or have the time to learn it.