Kyle Disterheft from LoopCommunity.com walks us through how to import Loop Community loops into Garageband, create markers, and export them out for playback in Mainstage.
Mainstage Template: http://loopcommunity.com/content/mainstage-template
Mainstage Training: http://loopcommunity.com/personal-ableton-training
http://loopcommunity.com