When you save a clockwheel, can it save the the number of songs in queue info as well? I'd like to keep zero songs in the queue while we have live DJs.
A clockwheel file will only ever contain the rules for picking up new tracks. Clockwheel itself has no information about the state of SAM and is only ever involved when a new track needs to be picked automatically.
If you want to clear the queue when loading a new clockwheel via Event Scheduler, you'll have to schedule a second event to issue the "Queue.Clear;" command (either by saving that command to a PAL file and executing that or simpler by using the "Add files to queue" event type and just putting said PAL command in the box there.)