I would like to track games that are included from game collections.

We should maybe be able to tell KTOMG that we own some games from another one.
I could add then Super Mario Advance as "owned" because I have it through the NES NSO app.

Or ideally, KTOMG should be able to add "virtual" games when adding some.
Let's say that KTOMG adds "automatically" a special virtual version of Castlevania: Harmony of Dissonance in my owned game list as I added Castlevania Advance Collection in my library.

Tracking completion of game collections is kinda awkward too, because even if you complete a single game of the collection, technically, you didn't complete the collection itself.