Lock Cue List to Master Fader

So right now a cue list can be locked to a list, but it would be useful to be able to lock it to the Master Fader pair.

Currently working on a show with lots of cue lists and would like for one of the cue lists to always be locked to the master fader pair so I know what's on stage, regardless of what's on the command line. I can't lock it to a specific cue list because we're jumping around a lot.