add API control to hide any character or entity for a certain player ,network blocking, disabling collisions and all logic automatically.

My main motivation to get this feature is :

Recreate my ESP based anticheat ( VigilantEYE ) that I created on garrys mod

But there are other use cases :

Bandwidth/Rendering cut: don’t send/render junk entities a client doesn’t need.

Stealth/cloak mechanics: server-enforced invisibility.

Scripted events: hide entities during cutscenes or triggers.