What i want is to crate a macro that will hide my webcam when i show "display capture window" and make it full screen
Yes. I've found that OBS tends to work better with lots of simple scenes, and duplicated sources across those scenes. If you copy/paste by reference (the default), then I believe it only counts once overall, and not once per instance, in terms of the required processing.First, I'd suggest considering whether that is a Source you want to Turn On/Off, or would that be better in its own Scene (Duplicate Scene, then re-arrange for new layout)... possibly picture in picture with webcam in a corner... or as you prefer... I'm sure others will provide other guidance, but maybe the simpler, basic OBS Studio operation approach (ie using Scene layout) might make more sense?
But if you have a machine that can easily handle the Multiview, the additional load of actually duplicating it probably doesn't matter anyway.