Create an Event Dispatcher within the HUD and call it when your Player presses a button in the HUD to confirm what seat they wish to take. You will want to pass the seat number as a variable parameter in the Event Dispatcher. After that you need to bind a Custom Event to your Event Dispatcher you created so that the Custom Event will fire when the Event Dispatcher is called. You will need a reference to your HUD where you created the Event Dispatcher to be able to bind to it.