Forgot to mention that you’ll just need to put it anywhere in the scene but I see you already figured it out, you can also play with the controls, bind them to functions (getters), sound triggers …
Note : I’ve noticed something weird, if you hit simulate/play then escape to exit, the mouse cursor is blocked inside the scene window and cannot be moved anywhere on the editor. You’ll to hit Alt+Tab and come back again to the editor to be able to move the mouse freely outside the scene. I think I saw that bug on the v4.0 too.