Copy Activities from Older Version of Current Schedule

I think I may know how to do this, but I wanted to confirm. A trade partner provided me with an update to their schedule activities, but it's from a version of the schedule from 2 months ago. In P6, I would just open both versions, copy and paste their WBS sections, and match up the logic. I can't do that in OPC, but I believe I do it in scenarios? Do I just import it as a scenario, and I can specifically choose what I bring into the current schedule? I only want to bring in the logic and