I created a few profiles that I use for building with my current color pallet, however the items often run out, so I would like to go to a chest, press a certain hotkey and get all missing/non-full stacks replenished.

This is also useful after death, if I want to restock my gear.

you can restock non full stacks by holding caps lock and pressing the move key/button. check the tooltip of the move button.

the rest makes sense and again will probably be done using the move key/button.

Thank you!
When implementing this, please do "replacing empty/missing stacks" and "refilling non full stacks" in a single interactions so that I dont have to press two shortcuts after each other.

r + h is the default hotkey for reapplying the profile so maybe use 1, 2, 3, and h + move key/ button for the replenish hotkey?

Well I will leave the existing functionality as it is and add another to refill the profile, or may be use replay hotkey to also refill the stacks if possible.