Ron..
You should be able to use the method identified in the SSR4 manual that is in the WIKI.
I'm not at my home computer but I believe that , under LSP, can go into options and define the cells as 255 levels instead of 0 - 100%. Then just set channel one and two to the appropriate number ... (the sum of the two channels equates to the starting channel number on the SSR4. Fill channel 1 first. ).
Be sure to set the sequence on looping.
Larry