Does a B@M Z-Gate Shifter also work as a Ratchet Action Shifter?

In an A and A Auto Catalog, it says that the B@M Z-Gate Shifter converts to ratchet action, but everywhere else I look at it, it only says that it is a gate action shifter, and doesn't mention that it can convert to ratchet action. Does the Z-Gate Shifter convert to ratchet action or is it only a Gate Action Shifter?