Where do enable/disable silent update?

The Project Update, This project has been changed . . banner that pops up in the browser (with a countdown) when you save something in the designer.

Where is this “Project Update” message enabled/disabled? Where?

Perspective general properties:

Your options are to change the message and timing, or to apply updates immediately. There’s no way to defer updates indefinitely as you can in Vision.

I see it now thanks Mr PGriffith.
I was scouring in the Gateway settings trying to find it.