I realize that this might be rather complicated but it would be VERY nice to have 'per feature' tool blacklisting. Specifically.. things like the Ender IO tools don't need item placement, but I would still like them to have AOE Mining. If this could at all be pulled off, I would be very happy.

Thanks for the suggestion - hadn't considered this before.
Turned out to be quite easy to implement, and is done so in 9778353