Key commands "zoom in/out tracks"

There are two key commands: “zoom in tracks” and “zoom out tracks”;
They don’t do anything here, either in Cubase 13 or 14. They have no effect at all, no matter what the focus.
Anyone know what these do or how to activate them?

They increase and decrease the height of selected tracks. That’s not what you’re seeing?

vid2

Ah, OK! I do see that funtionality. What I was missing is that they have to be “selected” tracks. It doesn’t say that in the key command name. Thanks.

On a related topic, what I was hoping for was a way to zoom tracks, horizontally and vertically, even when the focus is moved to, say, the lower zone with the mixer.

Please open the Key Command dialog and observe the various zoom commands, and experiment with them. It’s the best way to learn Cubase functionality imo.