I would like to know via script what the player is going to be jettisoning. And for that, I suggest, that player.ship.manifest.list would be ordered by jettison order. Edit: a bad idea, it would mess the view order .
If that breaks something, maybe a key in player.ship could be implemented instead.
Edit: property could be something like player.ship.cargoToBeEjected or something and it could return a full eject list or at least the next in line.