Insert(g1):Append(g2) Viewable(g1):Hidden(g2)
- foobar_g1 should be directly to the left of artist
- foobar_g2 should be on the far right
- both foobar_g1 and foobar_g2 should be in the column picker for this page
- only foobar_g1 should be in the column picker for the main library
- BUG: foobar_g2 shows up to the right of foobar_g1
- BUG: the splitter between foobar_g1 and foobar_g2 is not resizable