Manual reads: "AC outlet for ...AC powered effects or midi foot controller."

Trying to make room for 11 pedals...would it be advisable to run my Tone core Echo Park from the AC auxiliary with its designated power adapter (Line 6 DC-1G 9-Volt DC Power Supply)

Yes, you can use the courtesy outlet as you have described. You can connect a power strip to the courtesy outlet for use with multiple pedals/effects and their adapters. It may also be used to power an additional Pedal Power 2 Plus, ISO-5, Pedal Power Digital or Pedal Power AC. The courtesy outlet is NOT designed for use with power amplifiers or other high power equipment. 

Hey Ben, I just want to confirm that I can plug my second pedal power 2 plus into my first one, both of which will be powering only pedals? Didn't know if that would fry everything! And also I would like to ask about my EVH Flanger. Am I correct that it needs to be plugged into "two" of the 9 volt outlets?
Thanks,
Scott