The Feature Manager allows you to specify what features would be available inside the cPanel of your accounts. You may access it via the Packages section:
This tool allows you to control what features your hosting packages have, which in turn will help you scale your options better and provide more flexible hosting solutions to your clients.
A set of features is called a Feature List. To create a Feature List type a name in the Add Feature List Name field and click on the Add Feature List button:
By default all cPanel features are un-ticked, so let's enable some features such as Addon domains, Advanced Zone Editor, Aliases, etc by checking them:
To save the new feature list, click the Add button at the bottom of the page.
The feature list will be saved as yourcpaneluser_Main where yourcpaneluser is your actual cPanel reseller account.
From now on the feature list will be available for selection when creating or editing new packages.