Recording multiple midi inputs to separate tracks on garageband Is there a way to record multiple midi inputs to separate tracks simultaneously using garageband?

I'm holding an interview tomorrow and want a microphone for the subject and myself. I need to separately edit the tracks.
Update: Found that the 'Show Record Enable' function had been disabled.

To enable it, right click on a track, Track Header Components > Show Record Enable.

https://www.youtube.com/watch?v=-UrRzbLvsqc#t=36

You can then click the record button for each track you want to record simultaneously.