Searched all through, can't find this

Hello everyone, This is my first experience with UE, and I’m having trouble finding something. I have done some google searching and found no answer to this. In trying to find a solution to a camera issue, I stumbled across a thread where someone provided a suggestion to solve the same problem for someone else, and in trying to implement his suggestion, there is one part that I have been unable to locate. It’s the object highlighted in red in the attached image. I’m sure I’m just skipping over it, but if anyone can tell me how find this object, I would appreciate it.