Hey, could you explain more about the different types?

MOVE
COPY (i.e. copy-on-write clone if possible, or copy if necessary)
SYMLINK
HARDLINK
KEEPLINK (i.e. move file and create a symlink to the new path in its place)
DUPLICATE (i.e. hardlink if possible, or copy-on-write clone if possible, or ...

Where I input it?