The "copy drawings" option has been around. I use it in WF3. You need
to set the config option "rename_drawings_with_object" to something
other than "none".
It's great when you want to make a part that is 90% of another. If you
select the copy drawings option, it will copy the drawings that exist
for the parts, renaming them and referencing the new parts. So you get
your complete drawing from the other model too. Very convenient.
I guess now, you can chose that on the fly, which is probably a better
place to have it. Also note, the drawings need to have the same
filename as the parts for this to work.
T