Audacity and Apogee Quartet L

Hi. I’m trying to setup to use Audacity in a semi-pro studio environment in order to teach people the basics of recording the spoken voice.
A Mac with an Apogee Quartet interface. The ‘in’ sets its self to Quartet but how do I tell it the line in like I would do in pro tolls or Logic?
Seems the reason I’m not receiving any signal.

Probably you just choose the Apogee as output and input device in Audacity Device Toolbar , then set the number of recording channels to the maximum in the fourth box of Device Toolbar. Close the unwanted silent channels when you have recorded.

Audacity can’t choose which of multiple channels to record, and you can’t set a specific input channel to a specific Audacity track. Those are “feature requests”.