I was watching a tutorial and the Node Editor interface is totally different than mine at factory settings, when inside of a node group.
My default interface when entering a node group is that the background is translucent green and there is a Group Input/Output node that must be managed in the Interface roll out of the Properties Shelf (N). The tutor doesn't account for this discrepancy, but carries on as if his setup is just how Blender works/looks by default.
How do I get my interface to look like this, where everything is easily managed right in the Node Editor? Is this an add-on? If so, which one?