UE4 Custom Place Class (Actor factory?)

In UDK you use to be able to create Actor Factories that would allow you to Right Click, and place a custom class quickly. In UE4, we have the Class Picker under Place of the Editor Tools. Each UE4 version tends to add a few more, and I can even find my classes under “All Classes”. But I would really like to create my own custom categories, and propagate them with my custom classes.

As you can see in the photo the recent addition of “Empty Pawn” has been added, so I’m looking to add my own classes.

There was an .ini edit you could use to add your own classes for Blueprint selection, but I can’t seem to find any thing under ActorFactory or the .ini’s for this.