[Mosu]

Yes, it does, but Shift+Arrows is already used for shrinking/expanding in a select (applies to the files/tracks/attachments lists, but not the chapter editor, however, I won't use the same basic key bindings for different functionality within my GUI).

I'm currently thinking about Ctrl+Up/Down for moving up/down on the same level, Ctrl+Left for »move one level up« (in direction of the root) and Ctrl+Right for »move one level down« (away from the root). Using left/right is similar to a basic tree view functionality: expanding the current item (right arrow) and collapsing it (left arrow).