Hello Joulzer,
Unfortunately, it is not possible to disable Copy/Paste feature of windows only in one specific screen itself, but there is a work around which maybe could be helpful for you...
in zenon you can lock Windows shortcuts via checkbox "Lock system keys" from project properties, property group "Interaction".

Beside that you could use feature Keyblock Runtime Start which is a program with which zenon Runtime runs as a shell. In doing so, zenon Runtime is started, but all Windows system tasks are blocked. Shortcuts such as Windows key or Ctrl+Alt+Del no longer have an effect. User can no longer access the operating system but only work on the zenon user interface. The precondition for this is that the project properties are set Runtime title to No title (full screen). Then zenon runs in full screen mode and the Runtime cannot be minimized.
For blocking Windows right click, you could block it via the Registry or you could even disable context menu options like copy/cut/paste etc separately.
I hope this was helpful for you!
Regards,
Stani