How do you create a weldment or sheetmetal part with configurations and have the cut list properties UPDATE!!!

I know that you have to update the cut list properties to "WAKE THEM UP" AND REBUILD

But if you make a drawing of one configuration is ALWAYS maintains the "last used configuration. So, the tables do not show the correct lengths or bounding box.

I can't believe that nobody else uses configured sheetmetal or weldments....