Lathe is very easy, don't make it complicated by messing with those. Only thing I try to make sure is that the radius of the tool in MC matches the radius of the tool on the machine.

Interesting topic. I have been moving everything I can to my right click menu. It's a work in progress. As for ribbon bar modifications, I combined the Solids with Model Prep and added a Addons tab. I'm still trying to figure out a way to customize it to my liking but until they add the ability to make custom drop down menus I don't see my disdain for the ribbon interface letting up. I run dual 35" ultra wide monitors so I am able to leave my operations manager docked and still have plenty of screen real-estate to work with. My second monitor is usually full as well, with anything from Verify, Machine SIM and drawings to my Spotify. Its basically my catch all.