How to make a pop up window that disables the rest of the editor while it's on the screen?

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:bust_in_silhouette: Asked By riotous_coliseum

Basically, I want a window to pop up when the editor opens, that disables the editor until the pop up has been closed. I already know about the popup_exclusive thing, I need something a bit stronger than that.

:bust_in_silhouette: Reply From: HalfTough

How about Pausing games — Godot Engine (3.0) documentation in English