Import OMF into session template

This seems like a simple question but I can't find the answer anywhere.  I am moving from ProTools to Audition and have an .omf from a client.  I created a session template with my track layout, busses and plugins.  I would like to import an .omf into the session so that I can move the audio on the .omf imported tracks to the proper tracks in my template session. When I import an .omf it creates a new layout with the .omf imported tracks but I can't find a way to bring those tracks into my template layout.  What am I missing?

Thanks!