Line trace separate triggers in one blueprint actor

Hey thanks for the answer, but how can I determinate what object/mesh line trace hit?

Right now my door is a one blueprint actor and when its hit by the line trace it sees it as a one object. I was trying to add additional triggers inside door blueprint either as mesh or another blueprint actor but without success.

In case of blueprint actor I was even trying casting which in theory works but when im adding it to blueprint door as a new component it looses their logic.

Here is my current setup, again main question is how to trigger object hit by a line trace?