Hi,
You can't change the number of decimals inside the application. I have not checked if it's possible through external files, but i doubt it.
So beside setting the Hertz as you allready do (it must be very close allready), then you can set the rate to 8 bars (max), lower the tempo to half and let other notes play double speed like 1/8 instead of 1/4 notes, if that possible in your project.
Also you can use host automation over 16 bars to modulate the parameter/s instead of using an internal modulation and rate, if you use a host.
EDIT: Or perhaps use 2 presets - one for the first 8 bars and one for the last 8 bars EDIT END
Perhaps it's possible to find a trick with internal modulation, so you can get 2x8 bars sync modulation. I doubt it, but perhaps.
Among other things i've in example wished for "End Triggers". In this case it could make it possible to chain two functions at 8 bars each together, so the first function trigger the next, when it has run it's period. That would give 16 bars. Unfortunately this has'nt been added. At least not yet.
16 bars is much, but a 16 bar rate option would perhaps have been nice for you in cases like this.