Question WindowCamera DisplayControl render

[Awas]

Hey there. I need some plugin scripting help. Does anybody know how I can prevent certain objects from rendering in the small display window?

I have added a button to a world space canvas and do not want to see the button in the window camera display output.

 

[Awas]

To add clarity - I would like to avoid rendering the buttons in the DisplayControl renderer / whatever. I would like to keep rendering the buttons in the main window.