(Edit: To indicate that this might be thought of as a "Smart Collections" feature, perhaps similar to Smart Playlist functionality.)   I'd love to see an Advanced setting, or a Plugin, that enables a List of Rules (which can be manually reordered by the user) that would match whatever pattern is defined in the rules for auto-adding items to a given Collection. These patterns could be set to match the file path (eg, match on "*\Disney\*" to match all videos with a folder "Disney" in their file