Rebuilding the products of a room from a processed work order??

Trying to backstep my process, I copied a room and made a lot of changes. For whatever reason my AutoCAD crashed. I restarted without any problems, but when I went back to the original room that I copied, all the products are missing in the product viewer. I do have the drawing but that doesn't help much without the data. The room I am missing i have processed and do have a work order SDF file for that processed room. I am pretty sure a room can be recovered from the WO sdf file, but not sure how to do it? Any help on recovering this lost room would save me a ton of time on my next couple of rooms.