The crystal wrench serves many purposes. It can be used to direct raw essence through your power network. To do this, right click first on the source of power you want to use. This puts the source block in a pairing mode, indicated by a white beam shooting skyward. Then, click on the destination. This will force a pairing, and ensures the essence goes where you want it to. Keep in mind that if you force a different type of power through, it will destroy any power contained in the destination. !p The crystal wrench can also be used to show hidden particle emitters, and can copy their settings by right clicking. The settings can then be pasted to another emitter by right clicking. Each time you "paste" settings, you will need to copy them again if you wish to paste to additional emitters.