Hi Simon. Thanks for your efforts in this space.
Quick answer: Yes please!
I came here exactly because of this. This is my first post here. Because this feature really matters to me.
I faced a challenge during my previous band rehearsal. The tune is in 7/8, and we're running some drum machine track that is started by the midronome so I can have a nice click track. So I thought shifting to the 7 bar setting in the midronome and doubling the tempo would be sufficient, but of course this made the drum machine sequence run twice as fast.
So I currently have to run a one bar setting to not have to change any other settings and to not be confused by the 1 count moving across the bar.
Would we very nice to be able to choose between 7/8 and 7/4, 5/8 and 5/4 and so on due to this.
Coupling this denominator setting to the proposed "setlist" feature I see mentioned would be very nice, making playing such a tune live a breeze.
Coming from an E-RM midiclock + Boss DB 90 setup, this is something I really miss.
As for how it should be implemented, It's hard to say. If you need to go to 8, you'd probably want to switch back to 4 during the same gig. (We have a 5/4 tune as well

)