How do you lock camera or actor in the editor so you don’t accidently move it?
Right-click on the actor in the viewport or outliner and near the bottom of the menu go to Transform>Lock Actor Movement.
That would be helpful as a tiny icon on the actors transform panel.
When the camera is locked in this way, it’s still possible to rotate the camera while looking through it. Is there a way to prevent this?
I can’t find a way to prevent rotating it. Annoying isn’t it.