Delete a Show Attendance from AdminDB

1. Login to the AdminDB;
2. Find the [Show Attendance] you want to delete, e.g. [Jones of Ousekjarr, at Hastings 950];
3. Tick the rows to delete;
4. Change the "for all/checked rows" drop-down to "delete...";
5. Click "Submit";
6. Double-check you're looking at the correct Show Attendances;
7. Click "Delete These"; and, finally
8. Check the Show Attendances have gone.