I don't know if it's possible with containers, but it would be very handy if we could name (and rename!) bags and boxes ourselves.
Nameable Bags/Boxes
We finally are able to buy bags and boxes with various names, which has been uber helpful I must say.
It would probalby be just as easy to buy the various boxes and bags in the bazaar, would it not?
Disclaimer: I have no idea about how hard it would take to allow for such a change that each player could re-name a bag or box.
We've been able to buy named bags for a long while now. It's just not always any of the names suit the content, or you may have an ammunition satchel for arrows and another for bolts.
There is a problem with setnamed containers reverting to their blueprint's name when packs are dropped or pulled. I don't think this is easily overcome, and player custom naming of objects is probably something that won't happen, regardless of the item. At this point in time, we don't want players to have the ability to set the "real name" of an object -- it could start to be a problem if things are named maliciously.
I see your point! Unfortunate. :(
Maybe for the thing of ammo you could do bolt box, arrow quiver, and bullet bag? That may make it easier to keep track of ammo.