if media galleries, nested inside of other media galleries as media nodes, can be used as reference containers for media, i would like to be able to drag and drop a selected media gallery item into a gallery media node, and that item then gets moved to the gallery that media node points to.

can you recommend a set of functions or modules to build this functionality if you'd like me to take a stab at it? this would be very much like dragging and dropping a media file inside a standard file browser