Add cost codes to jobs

How do I add a cost code to a job in Sage 300 CRE Job Cost?

In Job Cost, go to Setup, Cost Codes.
Enter the Job and the Extra (if used).
With the cursor in the Cost Code field, enter the cost code or select it from the list.
Use the Tab/Enter key past the description.
Click Save.

You can also add cost codes to a job "on the fly" through various tasks when entering line items for that job.