In addition to the 'take all' and 'deposit all' buttons on containers, I think a third button to quick stack would be useful.
This would detect all of your items in your inventory that already exist in the container, and places them in there.
For example, I have a fuel box, containing leaves, wood, biomass, and biofuel. It would be handy to move all of these in my inventory into the box in a single click.
It would be very handy for people that makes boxes containing a category of items, like foods.