peter Hi Peter -- Yes, for the Stage "Confidence Monitor" I use a MacMini connected to an external 32" monitor (from behind it looks like a standard monitor wedge -- only I can see the lyrics/cues on stage.) This device is joining the "Host" session that our drummer is running from the main Host iPad.
On the "Host" iPad, the lyrics are set to 27 point, which fits nicely. On the stage monitor, however, I have to set them up to 90 pt for me to be able to see them. When I tried just setting the "Device Modifier" on the MacMini/External Monitor it falls very far short. I really do need all the lyrics on the Macbook/Confidence Monitor to display at 90 pt font (I'm older and half blind.) Those lyrics also contain stage cues and reminders that other devices don't need, so they really need to be their own separate set of lyrics.
Every single time we have to make changes to our songs, I restore the backup to each of my devices, but then I have to reset the font sizes on every single song. I just had to do this whole exercise for nearly 100 songs when I converted everything from single track to Multi-Track. And now that we're getting even more Multi-Track options, I'll have to do it all over again. I'm constantly making improvements and upgrades to our songs so I have to send new backups to my devices VERY often. It would just be so much less stressful to have a way to change the Global font size (at least on the entire playlist).