I did a trial of it as well. I did it in order to get nested tuplets. Which is quite broken, easily *the* worst experience I've ever had with music or audio-related software, I never got one measure done. To be fair, it was in a polyphonic framework but inside a single part it could not be accomplished in that setup. It was kind of shocking, as I was able to do this in Finale years and years ago.
I didn't have a problem understanding anything, it's just bug-ridden for this. Caveat emptor.