Günther Mair

Thx Rafi! I was on the way to solve this differently, but using the build-in method seems the correct way to go.

@NorbNorb: a short note to everyone who stumbles over this, the discussion on https://discourse.nodered.org/t/single-widgets-visibility/89689about and the introductory comment **"wrap it in its own group, which not only makes it look...