[Geoff Bacon]

I've previously suggested this to others:

When creating a setlist, put a leading space at the beginning of the name; this displays the list at the top of the page (when the lists are sorted alphabetically)
After the event, remove the leading space so that it sorts as at present.

I notice you have the date at the front; I put the name of the venue/event there with the date at the end. This means that each venue is sorted together (in your method, multiple venues will all be intermixed because you are effectively only sorting on the date)

Hope this helps
Geoff