How would I make a widget pop up whever I'm looking at a door?

I’m trying to create a widget that pops up whenever you’re in a certain area looking at the door. I want it to be a widget so that it appears on the players screen like it does on many games like borderlands or fallout with the little text pop ups for interacting with objects. I’ve got it working inside of a trigger box but it’s always visible, not just when you look at the door. Anyone know how to do this?

Hey, thank you for the help but is there any way you could show me an example of how it would work with a collision box on the door because the trigger box is not a child actor of the door right now. I’m also pretty new to blueprints so it’s a bit confusing.