split is also a menu option if you want to use the mouse.
Also, we do take all user suggestions seriously and we also will help reviewers out whenever possible. I'm sorry you were offended that I asked whether or not you actually purchased the program- seemed like a fair question. You won't be able to make a truly fair judgment of output quality if you run the demo version (unless you can ignore the watermarking).
If you want a fully enabled copy, please contact me directly, and let me know the name of the review publication, and I will get you a serial #. I can work with you one-on-one if you have detailed tech questions.