I'd like to request some way to send a redstone signal if a certain item is crafting, whether it be a new block (which may be preferable) or by an option in the Crafter. This way, one can do something simple like turn on a light as an indicator or activate some complex redstone system for automating the Runic Altar (for example).

Never mind! I thought I'd pored through the wiki, but it looks like I wasn't looking hard enough.