I just try to find any option to add manually multiple games (e.g. I want to be able to start skse, ModOrganizer, Skyrim, different launchers etc. from gog 2.0)

What I did is on search -> Add the "Dummy Product" , Mark as owned, Link executable - This is working, but if I try to add another executable and do the same it just jumps to the previously added "game". So I need to add a different "dummy" game each time if I want to add my own executable. I'm also not sure if this is really a good practice (add own executable with dummy data).

So my question is: What is the proper way to do this ? Also I want to ask where this "manually added" game data is saved and if it's possible to change the description (overview text) - Is there any json or is it saved into a DB