Enable Navigation Mega Menu in APEX
Login to APEX
Select the Application where you want to enable the Top Navigation Mega Menu
Click on Shared Components and then
-> User Interface
-> User Interface Attributes
-> Navigation Menu
Under the List Template
Choose
Top Navigation Mega Menu
Under Template Options
-> Use Template Defaults
-> Display Menu Callout
Once done, click on Apply Changes Button
Other options available under List Template are
You can use the different options according to your needs
The position of the Navigation Mega Menu can be changed from Top to Side by using the Position option available
