I added Navmenu and mobile menu template separately.
Navmenu shows the toggle icon automatically and when click the toggle icon, shows the mobile menu area. but mobile menu area is empty. There is no any options to choose the template.
I couldn’t find how to link the template as a mobile menu.
Please guide me how to link the template as a mobile menu of Nav Menu.
The nav element loads WordPress menus. Go to the WordPress dashboard, and under Appearance click Menus I think.
You have the Main menu selected in your photo, so add links to that menu and they will show up for you in the desktop and mobile menus.