I used to play a game called “Space Bucks” where you had different sized ships with different cargo hold configurations, etc. You also had a set of factions (Alien races) and each faction had a specific supply and a specific demand. The containers were also of different types: solids, liquids, gases, livestock, etc.
So, the whole shipping container concept has an abundance of possibilities that truly need to be explored and discussed further.
SO this is actually something I just asked about in the Discord.
I too would like this feature, below is something like what I would envisage!
It isn’t just useful for selling groups of items together (a ship upgrade kit for example) but also would help organise an inventory.
Side note: this is also something that Eve Online has.