I think it'll be even better if arrangement touches bins (store similar items in bins), barrels, bags (arrange booze, seeds etc)
Tangential to the original suggestion, can we have "Earring Bins" and "Ring Bins", by name, as and when they stop being a "(Mixed) Goods Bin". Already tradeable seed-bags come with such a descriptor, all it takes is "lowest possible level of description"[1], which could even lead to "
Masterwork Ring Bin" as a descriptor. (Also, with the seed bags, I could imagine a "Rope-Reed seed bag barrel".)
Anyway, yes you can do (hence why I want the above) the following...
I'm not sure I follow, don't we already have ability to organize stockpile by setting it to only store specific types of items?
...although pre-sorting within an initial mixed superset-stockpile could indeed be useful, ready for when you split things up. (The quickest way I already know of at the moment is set everything in a mixed stockpile to be Dumped, then ensuring there's subset-stockpiles set up ready for when you de-forbid them again. There's
probably a better way, especially now we have "take/give" settings on stockpiles, but I've used that feature less than I ought to have[2].)
[1] Or possibly "Amulets and Crowns bin" where there's (say) no more than two (or three, but certainly <=50%) of the possible sub-categories of the highest "coverall" level of description. But somewhere along the line "Armour bin" > "Footwear bin" > "High Boots bin", as options, as applies to the contents...
[2] Mostly for shuffling construction materials closer and closer to where I'm building things from them.