Simple audio “mapping” has me stumped

I have mono audio recorded on Ch 1 & 2 of my source video and want Premiere to “map” Ch1 to Ch1 and Ch2 to Ch2. The default seems to be both to Ch1 (see pic). I know it’s simple, have tried searching for the settings, but I’m stumped

 

Premiere modify audio.jpg

via Adobe Community : Popular Discussions – Adobe Premiere Forums http://forums.adobe.com/thread/1105239