That could be done, but if you switch just the extended row, you could leave the action group on the side as something else. Having that dichotomy might also be beneficial. Either way would be welcome.
One of the major things that I was about to start a new thread to suggest is this. I have only a few workspaces, and one is for everything that I want out of the inbox. Whenever I come up with a new tag that’s going in there, I then back into my settings just to add it to the badge counter as well, because I want everything I see in that workspace to get counted for the badge (and vice versa, I want to see everything that is counted for the badge to be visible in one workspace).