I have been working with Sketchup for many years and for me it has become second nature to use keyboard shortcuts.
To de-clutter my desktop workspace, I invested in a Logitech GamePad G13 (not affiliated in any way with those ppl..) and stowed away the keyboard.
Yesterday I upgraded the drivers and now I can get RightMouseClick on a button of the gamepad. It´s great since my wacom pen don´t have a button exept for MouseLeftClick in the tip (obiously...) I also assigned some other shortcuts to the pad, zoom-in & zoom out, CTRL-Z and others.
I will probably change my preferences as I learn more about AR but I can really recommend this setup. I have different setups for SU and AR and for me, it speed things up a lot.