What is the easiest way to duplicate a selected platform from a collection?
I wanted to separate PC Engine from TurboGrafx-16. In my collection I have TurboGrafx-16 with games from PC Engine and TurboGrafx together. All descriptions and categories manually edited and refined, all media selected and completed.
Now I would like to duplicate this platform to have two separate ones - PC Engine and TurboGrafx with the same content (games, descriptions, media, etc.) and then manually remove games that are not from a given platform.
What is the easiest way to do this? Any ideas?