Synthesizer

Yes, the handbook denotes what each knob of the Zita 1 reverb unit does. But I am not a sound engineer. I have little idea what most of those things mean. We are given a quick start setting and that's it. So why don't I just start twisting knobs and see what happens? Fine. But is there a document that gives me some suggestions for settings to start with to replicate small room to large hall reverb? I.E. suggested presets for various size rooms?