Shortcuts for the grease pencil tools

Hay,

So now that blender has a very good set of 2D tools, more users gonna be working with a tablet. And when I draw on my tablet. I like when my software tries to minimize the times I have to go to my keyboard or mouse. So in this post, I want to talk with all the tablet users and 2D artist about shortcuts.

The one I propose is a shortcut to open the materials, so I can switch to a different material faster. Or a pipet that picks materials? Not sure whats possible.