I like to keep track of games I'm interested in / I intend to purchase. With the new global search function and the option to manually add games I can now create some kind of custom wishlists. Problem is, I have to mark the games as owned (I apparently don't...) before I can tag them as wishlisted. Therefore they still appear in the "All games" tab in the library as owned, but an option to directly add them to some kind of wishlist seperated from that would be better. Further down the road it would also be a cool feature to merge them with imported wishlists from Gog, Steam, Origin, PS etc. to have a universal wishlist in one place.

Edit: typo

Bumping this! It would be helpful to have an alternate button to "mark as owned", maybe "mark as wishlisted" or "add to wishlist". Then the "Buy" link could remain there for games available at the GOG shop and the games could be placed into a custom wishlist, seperated from the owned games library.