But why would they add that? Construction frigates auto-build already, why add a control to make them?
Maybe it is for building replacement construction frigates (constructors). In online multiplayer, they are usually the first thing targeted. Yes, they auto-build, but only after 6 minutes! (If hostiles remain in the gravity well). They auto-build in half a minute once there is no threat in the grav well (for free no less). But there are also good reasons to have 'extra' constructors, if that is what it allows.
I don't know. The other pictures we saw, were definitely of a TEC constructor. But maybe this little icon, in the 7th slot, in the cruiser menu (the second level of frigates), that looks like a constructor... is the envoy cruiser.
But then I have no clue what is in the cap ship menu. I believe Yarlen, when he says, "There aren't any new capital ships in the works", reply #34.