More shortcuts or Pie menus

When I paint.I spend most of my time on the right-click menu,such like add mask,add generator,paint,fill,filter and so on.
but none of these have shortcuts!!   
I hope this pain point can be solved as soon as possible, enabling everyone to set shortcut keys for anything.

or   Add a pie menus (Users can customize the functions) to replace the right-click menu just like Maya.

Thanks!