You can change the details and settings of a menu here.
Menus - These are the menus made by you. You can make/add a new menu or delete it here.
Menu Location - Memoria supports 2 menus: Primary Menu and Sidebar Menu
Top primary menu - Choose which menu in the Menus would like to use as the primary menu. Secondary menu in left sidebar - Choose which menu in the Menus would like to use as the sidebar menu.
Top primary menu - Choose which menu in the Menus would like to use as the primary menu.
Secondary menu in left sidebar - Choose which menu in the Menus would like to use as the sidebar menu.
Add all the information you like to add, then click on the Save button.
Note
You can also do the same thing by following Menu Setup instructions in Widgets & Menu > Menu > Menu Setup.