No extra rows or modules for Virtuemart Mega Menu

High,
In documentation of Mega Menu stands that I can add more rows or modules in menu, there's no such thing in VM Mega menu.

Also how can I add menu item like contact?

Hj Sergio,
Thanks for contacting us and choosing our product!
I am sorry, I don't understand, Please description in more detail. and send me URL (site)
you have to install this extension?
extensions.joomla.org/extension/virtuemart
Thanks!