I have tried few of them, but what I find most infuriating is the lack of keyboard shortcuts. Usually they support only C+z for undo. Switching between pen an

I have tried few of them, but what I find most infuriating is the lack of keyboard shortcuts. Usually they support only C+z for undo. Switching between pen and eraser by having to actually click an icon is fine on iPad but it drives me up the wall when I am using wacom tablet and keyboard. Does anyone know application that supports keyboard shortcuts?