[JasonB]

Welcome aboard.  

There are a few ways to do this...

1. You can simply build two seperate tables. If they have detachable legs, and if the track is attached to the table, then the boards can be leant up against a wall for storage.
   
2. The boards could be hinged to the walll, so that they simply fold up out of the way.
   
3. The tables could be on a hoist, so that they can be raised up.
   
4. The legs could be replaced by plywood or MDF boards that have a quarter circle cut out at the back so that they can be easily stood on their edge.