I feel like the usable items should just have their separate skillbar. The fact every single potion i grab gets automatically added next to my spells, messing up their order every single time i change the active spell i will use during the day is just frustrating. It discourage players from changing their spells often since they will have to fix the spellbar afterwards.

Alt+ left click in the inventory on an item while the camp stash is opened transfers the item there. Make it a reality.