List quick switching

[MightyPork]

It'd be useful to have some way to quickly switch between lists in a pinned column.

a) a button for switching, perhaps with a drop-down - in the top bar?
b) option to pin the List of Lists column so you can use the back button to switch.

This is most important for users without gigantic screens who can't have all their lists pinned and want the FTL on the right.