Oracle apex region display selector use to improve navigation, flow and usability of page. Region display selector is region component that provide a page level navigation control.
Step 1: Create Manual Page.
Step 2: Create Region.
Step 3: Region Type Region Display Selector.
Step 4: Template Tabs Container
Step 5: Template Option Layout Default, Tab Style Pill, Tabs Size Small.
Step 6: Create Sub Region as per your need.