Info Required Modules: Superfish
A. Create Menu Structure
Step 1 Go to Structure> Menus link
Step 2 In Main menu area, click "list links" operator. Click "Add link" to add a new link
B. Configure Superfish Block Settings
Step 1Go to Structure > Blocks
Notice There are 4 Superfish blocks which are provided by Superfish module.
Step 3 Click "Save block" button.
C. Configure Superfish Block Style
Step 1 Go to Appearance > Click "Settings" under TB Nex theme
Step 2 Go to Go to Modules tab > Superfish Extend Style > Choose Nex style for superfish blocks
Step 3 Save configuration