I may be late to the game on this but it's just been so long since I've had to create actual work orders that I just now discovered this little trick...
When in the Composite drawing, you can STRETCH the border of the material (say from 49 x 97 to 49 x 121, for example) and when you update g-code for "all nests" the sheet size changes will be reflected in the reports and the drawing.
This is cool! Again, I may be late to the game but I thought I'd share just in case others don't know about that handy trick.
(P.S. It also works when drawing a part in 2D - stretch the border to the desired size (I'd refrain from moving the machine point, the circle in the corner) - and when you update the part the new size will be reflected in the drawing and spreadsheet.)
I've been able to do both successfully without any issues so I believe this is good, sound advice. If it's not, I'd appreciate the feedback.