How To Make VR Pressable Button w/ Controller

Bare with me because I am new to Unreal and even more so VR development. I am trying to make a button that can be pressed to trigger an event but I cannot figure out how to begin. I have a On Component Begin Overlap node that references my button BP I made, but I do not know what to cast it to. Tutorials for this tell me to cast it to a BP_MotionController actor, but this is outdated. What should I do???