Interesting! I have the same vise with the fore-aft tilt but I've never seen one which also has a side-to-side tilt.
User tip - It's not a heavy duty vise. The smooth jaws don't have a lot of clamping power. in addition to having the drill spot punched, securely clamp the vise to the table and tighten your tilt clamping cap screws and the vise screw. Any looseness is magnified by the height of the vise and all the fasteners.
jack vines