Tabs (Quicktabs)
This functionality requires Site Builder permissions.
Tabs functionality is provided by the Quicktabs module.
3. Adding the Quicktabs instance to a panel page
Once a Quicktab instance is created it can be added to a panel page the same as any other panel component.
All Quicktabs you have created are grouped under "Miscellaneous".
In most cases, tabs should be wrapped inside of a section.