How do I setup my game in a frame screen?

Hello people,

How do I make a frame around the game screen? So that I can play the game in a frame.

I have tried with a HUD, but then the frame also moves over the game screen, for example, if my player is going to jump/fall and he has scroll to behavior, then that frame goes over the player, it's the purpose of the frame Just like the letterbox settings, I would like to set game settings in the frame.

I already have parallax on 0,0 and the HUD layer is on top.

Is there maybe a way to make a frame outside the window size, which can then be seen in the game?

Thanks in advance.