You really dont have to copy finishing tools to the roughing library. When you select a tool for the features CAM it will be installed to tool crib (tool changer) tou can use crib tools for any operation. What this strategy wont do is set your roughing tool's feeds and speeds to finishing feeds and speeds. The workaround is milling stock/ edit/modify material/customised feeds and speeds based on tool type and operation. Good luck!