Improve navigation in YAcReader Library

When you browse through the thumbnails of comic folders and go backwards you always have to start from the top of the collection. For example, if you have 2000 comic folders in the Marvel folder and you open a folder you always have to start navigating from the top of the collection. It would be interesting to be able to navigate from the position of the last folder you opened. It is much more intuitive and when you are browsing through a large collection it is a real nuisance to search again where you left off in your review. If you do it folder by folder you have to search back to the point you were at hundreds of times.