I occasionally use a Leapfrog 48 desk at a small theatre in the UK, and it has recently (I think) gained the ability to disable "page handover" on "playbacks" (previously called "submasters"). It's a brilliant feature but it seems to have a fatal flaw - there's no quick way to clear them all. Or is there? I can't find any documentation about this. So that's my question - how can I quickly clear all the active playbacks, if they are scattered around the 20 available pages? For context,