To add you own menu please visit WP Menu -> Appearance > Menus, be sure you assigned you navigation to primary navigation menu Now you can add Pages, Posts and Custom Links from blocks located on the left.
By Drag and Drop Items within your Menu Section you can arrange your home section, just be sure that the Home Page is the first Item at menu
At the end you need to save it by clicking on Save Menu.
Mega Menu Setting
We also created Mega Menu option so you can create nice menus with items in columns with titles or without.
For Mega Menu columns you must add menu item with # “URL” attribute and – as “Navigation label” value. Under this Dropdown Type select mega menu .
Then select from the dropdown menu Megamenu Columns . You can show or hidden the title of the menu by sign in the check box beside Don’t show