If I remember correctly, every time the change is saved, it generates output (and yes, it needs to be configured with multiple issue). There is an option to process output by a background job, but I believe that still for every change transaction a separate entry would be generated, not just an IDoc with a current "snapshot" (not 100% sure though, it's been a while).
It should be easy to test though. If standard works as I've described then you'd need to write a custom program to capture a "snapshot" instead.