After some digging, it would appear that, at the moment, the cargo pallet is made up. Some further news regarding Gul Dukat's box. It appears in pre production art for DS9, as seen in the making of DS9, and according to an eBay auction for a prop replica, it's from "The Homecoming", my guess is that it's held by a Cardassian to lower the forcefield around the prison camp.
So, in a nutshell, if your Dukat needs to lower or raise a forcefield, or torture and interrogate another action figure, the "control box" is what he needs.