I am working with a 7 button mouse, and would absolutely love to be able to assign the view tools like orbit to my extra mouse buttons, since my m4 and m5 buttons are on the side so it will feel kind of like grabbing and moving the object. I am able to assign other tools to m4, but I can only set orbit pan and zoom shortcuts to the predefined setups. I know that other people will want to be able to assign custom keybindings other than the ones available to the view tools too, and as far as i can tell the only way to change them is to set them to the Alias, Inventor, Solidworks, or Tinkercad presets. Is this going to be added in future updates?