I am trying to make it change the camera on pressing the “play” button on my main menu widget. How would I do this? I seem to not be able to drag the camera actor into the widget, but I can in things like the level blueprint.
In a widget, you need to get the actor with one of:

and then you can continue with:

Here this will help. Its hard to explain. https://imgur.com/a/pL6Et02