I haven't found a way to copy a screen or objects from an one application and put it into another, which makes it a pain when maintaining multiple similar but slightly different machines. Maybe I'm missing something there, so if i am, I'd love to know how to do that. I had to rebuild an entire screen from scratch last week because I couldn't figure out how to copy that screen over from another line that already had it programmed.
My other complaint, which is more of just an opinion, is the software is not laid out very well and requires too much clicking and scrolling all over the screen. In my opinion, of the many HMI softwares I have used, Crimson is by far the best and Cmore is the worst.