Arc Menu

I find that default Maya's Marking Menu required the key and mouse button to be held down to select the desired menu action.
You can flick the Marking Menu but after 8 hours of works, my arms and wrists are quite stress from all the repetitive pressure.
So during my free time, I take the opportunities to learn PySide2 (PyQt5) and decide to make a simple GUI, to replace Maya's Marking Menu.
Initially it was called the Radial Menu because I have hard-coded the amount of quadrant that can be created (4, 6, 8 and 12), then I decided to revamp the base functionality and make it more dynamics so I can have N-th number of quadrant and also added some features for sub-menu to work.
Still lot of things are hard-coded, I have no programming background, but wanted something a little bit more customizable, so here is the result.