From the daily books section, click on the Competitor Prices bubble, open the Setup Competitors link:

Click Edit

Add in your Competitor's station description and zipcode.
In your Competitor list you will most likely want to include your S2K sites too:

Then click the (+) plus sign next to the competitor station to apply the S2K stations that will be compared to the Competitor station:

The S2K sites you will want to check the box that says OWN STATION:

Save your detail.
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