With the addition of a bump bar behind the bar each order could be displayed immediately the customer places an order.

Once orders appear they may be deleted or recalled by "bump bars", small boxes which have different buttons for different uses.

Bump bar and/or CRS 3000 keyboard control for clearing or parking orders.

These machines may also be directed by sensors located in the bump bars which, on contact with objects such as a wall, cause a reverse in direction, with a small offset allowing it to move one machine's width over on each crossing of the pool.