Attach two blueprint objects


Im trying to do realistic door in VR, without animation. I have working door and handles in two different blueprints and now I’m trying to attach them together so when I press the handle, only then to open the door. I uploaded 4 pictures to show you where I am right now, but I don’t know what should I do to continue, to make one blueprint for the two meshes or to attach them somehow ? I tried to push the door with the handle collision but its not working very well… Any suggestions?