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Blueprint communication

Hi all

Ok I am trying to get a button to communicate with a door via the level blueprint.

What I want and this is how I see its done but no idea what nodes to use.

I need to say once button A has been pressed and player is within proximity box then door will be activated.

I have the door activating part by calling the event but I don’t know how to output a signal to the level blueprint to say that Button A has been pressed.

I have been dragging of the completed output of (Move component to) as this is the last thing to happen. I was thinking if I added something on the end to say that is completed I could call that in the level bp?

I have 14 buttons and 7 doors which all need to be separate, 2 buttons for each door within 1 room.