gsabater
commented
5 years ago Hello @spitfireCH This issue is long overdue, but today I have released an update where you can do exactly this, you can quickly add a game to a collection and even create a new collection in the same menu.
Try it on the site and tell me what you think!
I give you a gif where you can see it somewhat in action, there is a tab for collections but i can't record a new gif right now.
When you browse your library, select some games and click the plus button, you can add them to playing games, completed games etc. It would be nice if you could also add them to your collections this way.