I didn't know about that either, but I still am using 2013 going to 2015 soon I hope.
For those of you out there wondering.
open a drawing.
click on a view
right click and you will see the replace model tool appear. (in 2014 and later versions)
This will make moving from proto parts like (bracket-1 in base assm) to our mrp system part numbers xxxx-xxx easy peasy.