I created inserts for both of the boxes to fill all the content in with sleeved cards. I designed it so that each mini sits in place so they don't move when you have it closed to avoid paint scraping off. Stories lid sits higher than normal but it was the only way to fit both the Boss meeples and the sleeved cards, if you don't have them or do not use sleeves then it should fit with just a small bulge without needing to print the insert. Boss meeples fit into the stories box underneath all the Hero and Boss mats.