Items reordering

[azmeuk]

A use case I often met is that I need to put people initials and signatures on official documents. For this, uploading pictures is very convenient.
Sometimes there can be a lot of initials and a lot of signature, and I don't recognize which signature goes with which initials.
That would help me if I could reorder pictures in the side menu, so I could group people related items together.

What do you think?