[samibe]

Use a naming convention for the setlists that keeps them organized. Something like 'band - setlist - date - venue'
Band 1 - Setlist 1
Band 1 - Setlist 2
Band 2 - Setlist 1
Band 2 - Setlist 2

Adding a space or numbers at the beginning of the name will keep the setlist near the top of the list. Use that to make active setlists easier to find. '_Band 1 - Setlist 1'

Most of my active setlists start with a number (usually the date) so they stay near the top of the list. Once I've performed the set, I'll add a 'z' to the beginning to move the setlist down the list. That makes it easier to find old setlists or to see when songs were played (in the song metadata). 'zBand 1 - Setlist 1' for this convention setlists would be grouped by band. 

Alternatively, the space could be deleted and no 'z' added. 'Band 1 - Setlist 1' This wouldn't move the old setlists to the end of the list so using a space, numbers, or special characters becomes more important for keeping active setlists easy to find (at the top of the list).