Currently, the pattern commands cannot go higher than FF.
If you’re after speed changes that exceed that usually you can do that by using the F1XX command to change the tick count (speed). Going from 6 to 3 will double your speed for example.
Lovely as this would be i get the impression that its the sort of ground up stuff that wont change.
Maybe for the best more hex digits might be less usable and immediate.
Specificly on the tempo issue i think id rather see the option to double resolution or split bpms or something (as in the speed sticky) so that 256 is enough to get very freely changing times when needed.
Its that or make some commands relative so that 256 + 256 = 512. Currently its absolute andthe 2nd is ignored. I imagine that would cause probs though… just a thought.
I think it does need work though… the workaround i was dreading and have just had to use for something involved resampling then fiddling with speed changes and the number of lines in a mini pattern and the larger one before it until things were right.