Root Access is Required. You cannot access it from WHM Reseller Account.
Do you wish to disable Cpanel account features that cannot be overridden by another feature list so your client/reseller cannot enable that feature?
1. log in to your WHM Account.
2. Go to Packages >> Feature Manager or type Feature Manager in the search box and then the option will appear. Click on it.
3. Under the Manage feature list, Choose the Disabled option from the Drop-down menu.
4. To disable any feature, tick marks the options you wish to disable and then click on the Save button.
Now, your selected features cannot be enabled or overridden by other feature lists.