While you are at it, it would be great to be able to use the side tap feature of the Apple Pencil. I find it to be really handy and reliable in other applications.
Ideally, it would be nice to let the user assign any command of their choice to match their preferred work flow. But if that is not practical, then it would be useful to be able to select from a list such as:
Show/Hide the folder menu
Reset the 3D view
Center the 2D view
Show/Hide hidden lines
Toggle Snap on/off
Speaking of the folder menu, I think it would be really useful to have the option to have it condensed (except when the full width is needed for manipulating folders or changing names). Perhaps just a very narrow window at the side of the screen with the first 2 or 3 characters of the folder name showing. Then a quick touch could toggle folder visibility and maybe a long touch could be used to select the folder grouping.