WHM (root) > Theme Manager > Config > Package-Feature Manager

This is an ideal for those who automate control panel account creation by using third party software such as Modernbill. Although the account does not have a package name, you can still get a different feature set for different hosting accounts. There is a skin configuration called "Default feature list". If hosting account doesn't have a package name or package feature list which is not defined, RVskin will load the feature list from Default feature list, together with its intelligent skin feature.

Select "Package Feature Manager" in WHM
Set the default package detail