Hello All, I have a set of four Motoman robots, two up6s and two up-130s. When I first acquired this system it was initialized as a QR4c group. for the past year I have been running the system as a dr2c and really enjoyed it. I recently added a third robot and as I have a fourth I figured why not add it to the group. Unfortunately when I first acquired the system I was new to Yaskawa and I stumbled upon initialization and never did take a backup of the old system so the cmos.bin was lost. Now I cant figure how to set my control group during initialization. does anyone know which robot/base/station options to select during initialization to allow the addition of a fourth robot . Motoman has helped me a lot in learning my system but they said that qr4c wasn't even an option. That doesn't explain though how my system was originally a QR4c and why there are conversion instructions on motoman.com if its not possible.