Right-click menu inside inventories

[Ocram]

It would be a great mouse saving feature to have contextual right-click menu when clicking (or holding right click) on items.
Some ideas:

• Simple right-click: same behaviour as now, transfer/move single item
• Holding right-click:
  • Move all: transfers whole inventory, maybe separated from backpack, so there is the possibility to chose what to empty.
  • Move same: transfers all the items of that type, not tag.
  • Drop all: discard all items to the ground.
  • Drop same: discard same type.

When stealing s/Move/Steal/g

I'm probably missing some obvious option to fit in there. Too many things in my little brain.

[swillo]

As right click is already in use perhaps some simple buttons on the bottom of the inv window to do these.
Anything tweaks that make inv management easier I'm up for.