How do you use an overlap event from a different actor/blueprint?

Although I’ve managed to make a begin overlap from a separate trigger’s blueprint using casting, the problem is it triggers when any part of the actor collides with the trigger rather than just the component I need.

I tried making an overlap event from inside the components blueprint and copying it over to the one I want but that doesn’t seem to work, and although I made a variable relating to the component’s blueprint inside it and used that to get a matching getter, I can’t find any function to plug it into.

So is there any way I can plug a component from another blueprint like this into an overlap event?