Many people commented, although mostly not on the last blog, that the icon utility would be MUCH more useful if it supported multiple directions.
And now it does!
It's a bit complicated, I really just threw the interface together for myself and since I wrote the functionality I understand it fully. Concept for multiple directions is similar to single direction animations, though. You just have to select a direction too.
Anyway, here she be.
Seems now I'm getting people asking for the ability to create animations from sprite-sheets than are multi-tiled. (Hulio-G, MdNight)