I spend 98% of the time exclusively with midi.   Wouldn't it be great if I could select a Sonar workspace where EVERYTHING that had to do with audio got out of my way, no default key shortcuts, no menu items, no audio routing, no context menus.    For those who work only  in audio, maybe the reverse would be useful too.

Screen sets are one method. Also if you set up a project space to your liking you can overwrite the "Normal" template (save as template and overwrite the normal.cwt) so all new projects default to that. You only need to do these once.