Basic Customization > User Interface Customization > Adding Actions and Hooking Them Up in the UI > Tab Models > Objective > Solution > Procedure - Adding Tabs in the Navigator at Different Levels
  
Procedure - Adding Tabs in the Navigator at Different Levels
The tabs in the red circle are the navigator tabs, the tabs in the blue circle are the first level navigation tabs, and the items in the green circle are the second level navigation. The following sections will detail how to add tabs at different levels.