Record/Print Speed

I have noticed the mm/s is not adjustable nor does the general setup save the cm/min on restart. What I found out so far is the cm/min can be set from 1 to 3 cm/min. The "paper advance" button is set at 40 cm/min. My goal is to change the default settings to either 50 mm/s or 3 cm/min without having to change the general setup on restart. Trying to find a solution for this goal/problem.