If it were possible to have a collapsable pane on the Gear Changer Frame that shows that row iff you are in AWOL, I'd like it - since, "slot" or not, if KoL shows it on the Equipment page of inventory as if it were a slot, why shouldn't we? It would be nice to be able to holster a sixgun from the Gear Changer when I am equipping all the rest of my initial equipment, rather than having to visit the Inventory in the Relay Browser.
I remember trying to figure out how to do something like that for the Container slot, before it became the Back slot, so that you'd only see it if you had one of the handful of (rare) Containers, but it was beyond my Swing skill at the time to do it. However, since roippi added the collapsable "You are in away mode" panel to KoLmafia chat, I think we have the technology now.