At import, provide efficient way of scrolling through collections sets

Collections and collection sets are for me a very efficient way of organizing my photos. As a result I have now a lot of sets and collections in an hierarchical structure. At import I usualy add new photos to a new collection and link that to a existing collection set. Currently I need to scroll in an MS-DOS-fashion through the long list of my collection sets to find the one I need. It would help a lot if the user interface for this could improved like the way collections and sets are presented in the left side panel. It would speed up the search tremendously. 

Cees