It would be awesome if there were extra bindable keys for smithing metals (swords/tools..etc) So you could press the arrow keys to toggle the modes(or whatever keys you want) So say...
Up Arrow - Spreading
Down Arrow - Break off piece
Left Arrow - Move material left
Right Arrow - Move material right
I think it would go a long way to help smooth out and make those processes more efficient. Using the context menu kind of takes you out of that moment.
Just a thought!