Sylvan
I looked there but I do not see anything like that.
Check this out....
https://www.cakewalk.com/Documentation?product=SONAR&language=3&help=Mixing.48.html#1655522 To export multiple mixes
If your project contains multiple Mix Scenes, you can export all mixes simultaneously.
1.
To export the entire project, go to Edit > Select > All, or press CTRL+A.
2.
Go to File > Export > Audio to open the Export Audio dialog box.
3.
In the Files of type list, select the desired file format.
4.
Enter a file name in the File name box.
5.
In the Source Category list, select Mix Recall.
6.
In the Source Scenes list, select the Mix Scenes you want to export.
7.
Click Export.
The selected Mix Scenes are exported to separate files. The exported files use the following naming convention: <project name>-<Mix Scene name>.<file type extension>.
For example: MyProject-MixScene1.wav, MyProject-MixScene2.wav, etc.