Tablet workbench for grease pencil mode

2.8 grease pencil is amazing! Can we have a tablet UI workbench for portable device like Surface Pro? Adobe AI CC has one, basically a simplified UI with touch screen in mind. Also being able to reposition the interactive navigation would be great.

Something like this,

Why would moving those UI elements around aid tablet input?

All frequently used UI elements are on the left for right handed people and vice versa for the lefties. The idea is keep on drawing without interruptions of creative flow. I use a software called Tablet Pro, which creates custom on screen keypad for Windows.