Do you have a proposed scheme whereby Hijack could actually accomplish this? Remember that Hijack is not the player software. It can do some tricks by screen-scraping, but for the most part, it has no idea what the player software is doing. For example, I don't see how it can easily know what the next letter of the alphabet would be.

Have you ever tried spinning the wheel when you're in the playlists menu? It lets you go a lot faster.