Hi,   I have now finally come to a stage with my organ project at which I can start scripting my ngr file. In order to speed up my keyboard scans I have used the relatively new option to define the maximum number of shift registers (SRIO num_sr=16) which I think might explain the behaviour which I'm describing in the following.   I played a bit around with the scripting and in particular the delay functions. The script was as simple as:   if ^section == 0 Log "start" delay_ms 1000