Asset Browser - manual sorting/alphabetic placement of thumbnails

The asset browser thumbnails are currently sorted alphabetically in catalogs, this is great however it would be cool to also have the ability to drag and drop them to custom positions. You could then press the save icon when happy with placement and switch between alphabetical or manual placement depending on workflow. My proposal is for catalogs to be more like a music playlist where you could change the order of the thumbnails at any part of the hierarchy.

As an example:

Drag and drop then click save button when happy. Toy planes next to each other makes visual sense.

Instead of Making 50 new catalogs for every type of toy or brand, you just drag and drop similar ones closer to each other.

Most people would also be able to keep with the default alphabetic sorting.