UMG button for vehicle handbrake control?

Thanks Tercio - could you explain “call from the Playerdata variable” please.
I have created the two custom events in the Sedan BP and connected them to the SetHandbrakeInput nodes. Next I went to the WidgetBP and added Cast To Sedan to the Event Construct - and then I dragged off the blue pin and promoted it to a variable which I named Playerdata - as in my screenshot below.
Now I’m a bit lost…