Get Zebra instead.
I know you can make any sound with any synth plus effects, within reason, but if you want a specific sound why not get a synth that does it out of the box. Much easier.
If you insist on keeping with Operator, try adding chorus, flanger, some subtle grain delay and reverb to fatten up your sounds.
I've recently been thinking that trance should be a state of mind, not a genre. Try to recreate a state of mind and you will make good trance. Try to recreate a genre and it will sound shit. I haven't tried this yet. Good luck
