How to Interact with parts of mesh

How i can do a interaction with special parts of a Mesh. For example i look at the door of a Car its highlighed and then i can open it but when i look at like the heck of the car it just highlight this.

I know about linetracing and interacting with objects but not how to difference the parts or how to act with them.

Thanks

Make the parts individual components in your BP. Then you can distinguish at which your eg linetrace Hit. Components can have Tags, and you can distinguish by Material also. Hope this helps :wink: