Bed support for the starboard bed is stowed on the port-side box. Note the extender support holding the port extender cushion. It can be quickly slid back under the lid to allow use of the original cushion for the 2 position commuter seat. The starboard bed support rests on a wood block at each end and is captured by the slotted fingers; it is rock solid with the leg extended. The storage box with lid is 40 inches long and holds kitchen items.