Make the Buses function like the Buses in Pro Tools

Kind of confused right now… Are “Group Tracks” the actual “Bus-connections” that I’m referring to?
Just to be clear: The kind of “Bus-connections” that I’m referring to in Pro Tools, are just routing-connections, and they do not show up in the mixer as a channel. They only appear as connection-devices in the Input/Output-menus, and the Insert/Send-menus, for each channel in the mixer.

I went to an audio-technician-school some years ago, where they used Pro Tools as their DAW, due to it being the studio-standard. So now I’m trying to convert myself from the Pro Tools-language, to the Cubase-language.
So, what type of track/channel is a “Group Channel” in Cubase? What function does it have in Cubase?
Bus 2.png