Hey Robert, I was trying to do this same thing but on a larger scale. Where i have multiple boxes that are made up of multiple side peices. but the boxes overall sizes are different. i want to group the boxes that have matching side panels. and create a box type from that. so basically i want to add a level to this and compare all side panel sizes that make up the boxes so i know how many typical boxes i have
this is what i have. I am starting with the overall box (9 boxes total, 4 of these boxes are the same size) and the sublist has the panels that make up the box.