We need keyboard shortcuts for common tools... this is just one example.
(Using ArcMap 10 here... ArcGIS Pro is NOT AN OPTION!!!!)
Being able to switch between or activate the draw rectangle, draw polygon, draw line, etc. would be extremely useful and time saving to those of us who must do this 10s or 100s of times per day.
This would also be useful in creating keyboard macros (Logitech G13) to automate the use of tools.
For example, since ArcMap lacks any type of macro recording functionality to complete repetitive tasks; I have started using a 3rd party option to get around this and automate a multikeypress task into a single button. The lack of options to assign 'Draw Rectangle' to a keyboard shortcut makes this task more difficult.... (Note that many OTHER tools are able to assign shortcuts through the customize menu.... but not the drawing tools.)