We are talking about the File/Save As option, which saves as a ?.SGU/?.MGU File.

The option to includes the Utility Tracks has existed for the last few versions, although, they didn't really work until this version (as I remember). It does create a file that opens in BIAB, but doesn't include event/patches for instruments or levels and effects. And it doesn't carry through and set the corresponding channel number on the Utility Track.

Thanks