Append(p1):Append(p2) Hidden(p1):Hidden(p2)
- foobar_p2 should be on the far right
- foobar_p1 should be on direct left of foobar_p2
- both foobar_p1 and foobar_p2 should be in the column picker for this page
- neither foobar_p1 or foobar_p2 should be in the column picker for the main library
- BUG: splitters to the right of foobar_p1 are not resizable - bug XXXXX