Trackman's Goggles

This official article can be found over at the official Railcraft wiki: http://railcraft.wikispaces.com/Trackman's+Goggles+(Tool)

The Trackman's goggles bring in augmented reality. These handy eyepieces let you see things about the world normally hidden, such as the Ender Fields that Anchor our world in place or the signals that link a Controller and Receiver together.

The Goggles must be attuned to the precise Aura to you wish to see, and can only view one Aura at a time. To switch the current Aura, you must put the Goggles in your hand and right click them.

If you disable the Goggles by setting the item id in the config to zero, then you will instead be able to use the hotkeys of your choice to enable/disable the Auras.