As cabs used in light rail vehicles and locomotives continue to shrink; the need for innovative space saving designs is necessary. Introducing the Folding Table Seat. A new option that can be added to any of our seats that feature an armrests. Yes, a folding table. The table can be purchased as an add-on. The table is bolted directly to our armrest mounting in the seat. The design saves space by not having to attach a bulky table to the wall or add a desk.