Editors' Guide: Add Reporters
The CMS Options tab allows only a single author for each story. This step allows you to add more.
On the Publish page, you'll see a tab called "Add Reporters." Click it.
Type the name of the person you want to add in the "Browse Authors." Click "Search."
Click on it when it appears below. It should move to the second column.
To make this person the lead reporter (and make their name appear first in the byline), click the radio button beside their name in the second column.
To remove the person, click the name in the second column.
Click "Update" (not "Quick Save") when you want to save. "Quick Save" (for simple text edits on the page) will not make the addition.