early music transcriptions

[Geisel Hanna]

Hello everyone,

I have two questions concerning transcriptions of medieval or renaissance music:

How does one enter color brackets? I couldn't find them anywhere, but as they're rather basic I'd be surprised if they weren't supported. (My next question about this is probably going to be: How does one deal with colored ligatures or color overlapping ligatures?)

Are trecento measure signs supported, as quaternaria, ternaria, ... , duodenaria?

Very grateful for any hints I remain 

with all the best wishes, Hanna