Hi Stanley,
The Quasi-peak detector is currently only available in Spike. We don’t have any way to automate this measurement via an API at this time. If we provide anything in the future it would probably be through SCPI commands to Spike. We don’t have any plans to pursue this at the moment though.
I appreciate your feedback, if you would like to reach out to me via email at aj at signalhound dot com, I can contact you if we ever pursue this in the future.
Andrew