QuickslotFallback

Features

If you use a quickslot with a skill that requires a left handed item (Chakram, Pistols, Dagger, Lexicon, Shield), then it will equip any matching item is available.
If you use a quickslot with a skill that requires Rage, Discipline or any Boon status but you do not have the associated status active, then it will drink a status-related potion if any is available.
If you use a quickslot and empty a water skin in the process, a non empty and non assigned to a quickslot water skin with the same water type in your pouch / inventory will replace it.
e.g. If you press Feral Strike while Rage is not active and you have at least one Rage potion, you will drink it.
e.g. If you press Perfect Strike while Discipline is not active and you have at least one Discipline potion, you will drink it.
e.g. If you press Frozen Shot while Cool Boon is not active and you have at least one Cool potion, you will drink it.
e.g. If you press Infuse Light while Bless Boon is not active and you have at least one Blessed potion, you will drink it.
It should be compatible with modded skills requirements.

Showcase

Make Feral Strike Great Again on youtube.

Limitations

Drunk potion / worn equipment will be taken from pouch first if available else from the worn backpack.
Pouch / backpack can be deactivated with Outward Config Manager.
You will still have the vanilla warning of missing the matching status / item.
Available food giving the matching status (e.g. Angel Cake for Discipline) will not be considered even if you have no expected potion.
Consider QuickslotPistols mod to improve pistol use further.
It has no effect on Lantern skills (Flamethrower / Throw Lantern).
Any feedback is welcome on Discord.
Being that simple, I expect it to work even in multiplayer though.