I would like to request a feature that I think would be useful in the pro version of REW. Along with having the multi-input feature, it would be really nice to have a multi-output feature. For instance, when measuring 7.1 systems using HDMI, have the tool sweep all the channels for every microphone position. Basically the same method that Receivers use with their built-in systems. This would be a huge time saver that I think is worth paying for. Sorry if this has been discussed already, I could not find any discussions on this topic.