Eh... I don't think it is too complicated. In truth, you can just leave most all of the settings as default. Set to air or input your Nitrox mix and go...
My only complaint is the size of the screen. I'm starting to need bifocals, and would appreciate a larger screen. But then of course, your mileage may vary.
Marie13... maybe use my simplified cheat sheet. It is easier to read, and focuses on the features that I like.
I've tried to attach my PDF to this message... hope it worked.
It works. Thank you very much!