I also have a Quik20 and found this thread while searching for codes myself.
Maybe this will help. It's for the Quik20 but does not refer to any RCL key:

Quik20 Universal Remote Control Programming Codes

1.Press and HOLD "PWR" and "MUTE" until the red indicator turns on (3-4 sec)
2.Select the type of device you are programming by pressing the TV, VCR, CTV or AUX key.
3.Aim the Quik20 at the device you are trying to program and press the red "PWR" key.
If your device turns off, press the approprate device mode key again (TV,VCR,AUX) to lock in the brand code and exit.
4. If the device doesn't respond, press the VOL"+" key once to advance to the next brand code. Now press the PWR key again. Remember to immediately lock in your code when the component turns OFF by pressing the proper mode key.

This search method could take quite a while, so be patient!!