mozilla-appmaker/appmaker — pull request #1633 by flukeout (2014-07-08 16:10:22+00:00)
Title: Auto channel features.

Channels with default methods now automatically choose different, unused channels.
They will favor unmatched channels first. If there's a broadcast channel with no listener, a default listener will choose that channel first.

Please try it out and let's see if it feels intuitive.