When I have previously used Joomlart templates, I have been able to wrap text in a menu item by inserting <br /> in the middle, when editing the menu item. So, for example, if I want a menu item display the English text on top and the Hebrew text right below, I would enter About Us <br /> אודות as the title of the menu item.
When I do that in Pyro – it strips out the br.
The menu items that i have not yet opened are still wrapped around, but the one menu item that i opened to edit, now has the two words in english and hebrew next to each other, which makes the entire menu not fit on one line.