I found this in the description of the pouches:
"Using a small-but-tough plastic snaphook, the pouches attach to the "D" rings for a key snap that are inside the Buzz , Smart Alec, ID, LUX, Empire Builder, Super Ego, Aeronaut and Cafe bags. If you have some other bag, that's ok -- just don't use the little plastic snaphook on the pouches or break it off."
I've been using my pouches in my imago. I have one tucked into an inside pouch and clipped onto one of the plastic key rings. It looks like this is not ok to do with the imago. Just wanted to check.