Problem exporting a multi-track ie WAVEX

Moderator: Moved to correct OS X board

Hello, Trying to export a 12ch multitrack to put into Qlab. I’m using OSX 10.10.4. I seem to only be able to export multiple tracks and not bounce a single wavex. I can’t seem to get anywhere near this image;

What am I doing so wrong?!

Thanks in advance for any help.

Please don’t forget to tell us your Audacity version when you have a problem. See the pink panel at the top of the page.

As it says on Advanced Mixing Options - Audacity Manual, to use that dialogue you have to choose “Use custom mix” in the Import / Export Preferences.

Note that to use WAVEX header, choose “Other uncompressed files” when you export.