The Hero Lab implementation of 3E Mutants and Masterminds includes a power Extra for the Summon power of "Hide Minions" with the following text:
This extra hides your summoned minions. This is useful for heroes who summon many identical minions, or summon minions of a broad type. At rank 1, only one minion will be displayed. Rank 2 will hide all summoned minons [sic].
The thing is, I haven't found that Extra in any of the books I have access to (Core book, Power Profiles, Gadget Guide, Cosmic Handbook, Supernatural Handbook), and the Extra isn't tagged with a source. Does anyone know where this Extra might have come from? Lone Wolf generally only adds official material to their product, so I don't think they're making it up.
I also asked on their forum, but it's not always that active, and I think the guy who would have implemented it is no longer with the company.