How can I add an AAC 2 channel audio track as default

I want to add an AAC 2 channel audio as default as well as copy all the other available audio streams as is into my MKV Normal Quality conversions. Can I do this with MCEBuddy and if so how do I accomplish it.

Thanks

Good question. I know you can add a stereo track and 1 other track using the method described here Creating Multiple Audio Tracks from a Single Audio Track and that you can add all tracks as described here MCEBuddy - Advanced Settings, Commands and Tweaking but I have not tried to do both.