Insert:Insert Hidden:Hidden
On load:
- both foobar_d3 and foobar_d4 should be in the column picker for this page
- neither foobar_d3 or foobar_d4 should be in the column picker for the main library
If you click the button:
- foobar_d4 should be directly to the left of artist
- foobar_d3 should be directly to the left of foobar_d4
- all columns should be resizable
If you use the column picker
- foobar_d4 should appear on the far right
- foobar_d3 should appear on the left of foobar_d4
- all columns should be resizable