The search window from main menu -> tools is a powerful tool which even allows to store presets. Nevertheless, imo it would be an amazing feature to store the searches in a fourth tab in tree pane: albums. The advantages are obvious: quick access and organization in a tree view with subfolders.
In addition to that creation of simple/static albums would also be a nice feature.
[Request] Storing searches in tree pane: smart albums
Moderators: helmut, XnTriq, xnview