Would it be possible to support data values in material names for block sets? So you can use specific type of dirt or a specific color of wool.

I.e.

  Finish:
    Material: WOOL:15

Nope, Bukkit has completely depreciated data values as they're just magic numbers.
When there is a safe way of doing it, I will implement it.

Then how would one choose a specific wool color? They don't go by the material name of ORANGE_WOOL. Some type of remapping support would have to be added to parkour.