It takes five minutes to fully fill healing kit. And then a lot of time spent on occasional refills.
It'd be wonderful if the kit, when used on the Medicinal Herbs, would've checked for all non-improved and non-superior herbs in the inventory and added them all in a single action.
Frankly, just letting it work on Bundles would be a nice QOL Improvement.
Another alternative would be a player tool for rapid clicking at least :)