Essential. Can't do without triplets. I was able to add triplets in score view. Ex. I had to create 3 eight-notes, and then turn them into an 'eight-note triplet, first select the notes, then go to the Action drop-down button at the top of the score view and select 'make tuplet. (or custom tuplet)
Also when creating triplets in piano view, they show up as triplets in score view.
I think a 'tuplet' button may be useful. It would be nice to enter triplets in real-time. As it seems, you can only 'convert' into triplets if trying to compose using the score view.
Bob