the keyboard shortcuts should all be on either the right or left side of the keyboard as opposed to being name related (P for pen, T for text, etc.). this makes it very hard to operate one-handed. if my right hand is on the mouse, my left hand is on the left side of my keyboard. i don’t want to make my right hand leave the mouse nor drag my left hand to the right side of the keyboard.
at the least, this shoudl be an option to choose from.