I would like to have a search function added to My Library, and Collections. I would also like the ability to sort and maybe segregate titles within My Library.

personally i like this idea, specifically, id request the ability to sort by various factors, but most importantly are name, and even more so,  recent upload date, so we can have an easy search in our library for updates to all our games without having to check each game individually. if they can be sorted by most recent uploaded file to the games' downloads selection, it would make it immensely easier to find games that have received updates from the developers.