I hate to sound redundent, but it sure would be nice to be able to resize the brush via the control+option or command+option keys like in Clip Studio Paint or Photoshop. It is a lot easier on the work flow.
I just bought a XP-PEN Artist 22E Pro (yeah), and it makes it easier to use my hand on the keyboard while drawing with the right hand.
Just like the eyedropper using option key and space key for pan in most every program, they are all in the loweer left of the keyboard and there is very little searching.