Is it a model 3? If so, you can set one-press memories such as on your AM/FM car radio by using the 1, 2, and 3 (top row) numerical keys on the key pad
Place the radio on the zone and channel you want to 1-press access, and long press the desired top row numerical key until the radio gives a high beep. Now no matter which zone or channel you are on, a short press on the preset key will select your preset zone and channel/talkgroup combo. Too bad it only works on the top row keys, but I find it to be a great feature anyway.
Not sure how far back in the firmware and software versions this goes.