Thank you AposMus for your help,
I think the problem I have with the waveforms has something to do with how i’m trying to change the zones. I assigned “SampleOsc.Filename” to the pathbrowser and it works for a while but if I reopen the program later the zone has been changed to the last file that had been loaded. When that happens all the macro parameters are not linked anymore. Do I just specify “SampleOsc.Filename” by itself, or with a specific wav/aiff file so it looks for whatever sample has been loaded?