Is there no “TCMP” Tag available to indicate that track(s) are part of a compilation?
What metadata format are you speaking about?
ID3 / iTunes - if you name this window “ID3 / iTunes”, it should contain all iTunes tags (even if not in line with ID3 standard). TCMP is one of those, only (?) used by Apple’s iTunes.
I see. This will be added in next version.
From another thread, this was a nice overview of metadata options:
It seems that maybe some updates to the WaveLab options are in order.