Cnames point a host to another host rather than an IP, and unless you have a number of different functions going through the same domain you probably won't need to worry about them. The one you will see there by default should be left alone, since what it does is point the www version of your domain to the same place as the domain itself, so that www.easydns-example.com and easydns-example.com both go to the same place.

When all the records are set up correctly, click "next" under the Cname section to continue.