Hi there! :)
First of all, thanks for the theme!
I really tried to figure it out by my own, but I can’t find a way.
So here is my question:
How can I create drop-down menus in lay theme?
(for example: http://www.sursac.es > Contact)
At the moment lay theme actively disables submenus. So even if you try to create submenus it probably won't work.
I'm going to change that for an upcoming version. But I think the support for submenus is going to be really basic at first. I'll try to remember and write you when there's support for submenus!