This should be easy...but it's not!
I have happily used Audition for years as a voiceover artist, with my Neumann mic into the Mic1 Input of an Apollo Twin Interface, into an iMac running Audition. I record in Waveform in mono, as it's just a voice.
Problem is, I've just added a Sennheiser mic to the set-up, plugged it into Mic2 input of the Apollo Twin, thinking I will be able to easily switch between the two, depending on the job I'm recording at the time.
However, if I now record in mono, Audition will only receive the input from Mic1, because Mic1 is on the left channel and Mic2 is on the right. I think I need to change what appears to be the 'Default Stereo Input' to mono, but can't for the life of me work out how. Here's the screen shot of Audio Channel Mapping if it helps.

Any help would be really appreciated.
Tom
