Pocket Satchels

[The Grim Sleeper]

I am pretty sure there is some weird coding reason why all containers have exactly seven slots but I guess if the coders can do it than go for it.

The limiting factor is in /datum/hud/storage.dm which defines the hud elements for most boxes.
It is used by boxes, backpacks, some types of pill bottles.
Yet wall-mounted lockers have 16 slots and borgs have an entirely different hud that scrolls.
So it should be possible to make a just make a fresh hud element that has only 4 blocks (3 slots + a close box).
But yeah, hassle.