I wanted a player insert that would fit inside the default cardboard boxes.

There are 5 compartment:

2 overlapping for action cards to differentiate between unlocked card and the reserve 2 for modifiers and items cards: one for the active modifier deck+items, one for the reserve of modifiers 1 small compartment for storing different token and markers

The character mat is inserted on top to lock the cards in the insert so that it won't move.