this is from a perspective of a filthy spruce casual like meself so take this into account. also its likely nobody would care about this but i would like that and there could be at least two other people who would.
there's a lot of tools and shit to carry and upgrading beyond a grand belt involves either silk or trolls. between water, keys, pouches, stone axe, woodsman's, cleaver, pickaxe, scythe, shovel, hammer, pan etc there is a lot of crap you either swap out of a belt, or keep in inventory, or store in a random chest somewhere.
you can put away belts with tools inside to containers, but you cannot keep them in inventory. that means you can theoretically keep multiple belts of multiple tools for quick swapping. however, you cannot easily inspect a belt to see the contents without equipping it first.
hence id propose 1) ability to give belts custom names for easier identification and/or 2) ability to peek into belt's inventory like with quivers, baskets, creels etc.
that would make it easier to manage a greater-than-one amount of belts for quick swaps, so one could keep a combat belt, (vill/hermit)age management belt, mining belt and so on, and also have an easier time perhaps preparing belts for other players (a new village member, for example)
i dont know how useful would that be for most veterans who have 70 troll belts already, but the tech for both renaming and peeking is there already, so i assume it wouldnt be a massive problem with implementation (hopefully)