hypertech programming question

What rpm do you set for idle? (95 Z A4) Do you set it for in gear rpm or in park rpm?

You can't set the idle with hypertech.
LT-1 Edit or Tunercat is needed for that.
Being a 94 obd1 the software isn't that expensive.
You can also copy your hypertech program before returning your PCM to stock.
Then you could sell your hypertech for 150.00 or so and be able to do much more as well as having Ion or Brian sending you professional tunes you can flash your PCM with if you add more mods.