View Mode Buttons Moved

I admit it. I was playing with the toolbar customization. I use format paintbrushes a lot, and I wanted them handy. I experimented with some other buttons.

Now I have the View Mode buttons (scribings, corkboard, outliner) on the Main Toolbar and I can’t figure out how to get them back where they started. I can get them off the toolbar, but they don’t go back to the original location. Any help for how to do this would be appreciated.