The concept is that a container would save a list of it's contents to a text file when closed and import them when opened. So if you were to close the container, load a save with a different character and open it, the contents would transfer over, and any changes made would transfer over when you switched back. This would allow you to trade items and share inventories between multiple characters, and if you were to do it with every container in a house create a sort of shared base for the two different players.
If I can pull that off, I was thinking of doing a similar thing with characters, copying over one games characters stats and equipment to sync with a companion npc in the other.
Unfortunately I haven't touched coding since Morrowind though, and I wasn't exactly a savant then either, so I'm pretty lost as to where I should start. I think it should be doable using obse, but before I spend hours playing around with code I don't even half understand I thought I'd ask and find out if it was even possible.
I'd really appreciate any advice or links that people could throw my way, I could really use the help.