Hi, you could use any of the following which have slightly varying behavior:
1) the hideOnClick: false
option – this will prevent any sub menus from being hidden when an item (or link inside a mega menu) is clicked and will also prevent hiding the menus when you tap elsewhere on the page on iPad.
2) the following code ondomready (e.g. put it right after your SmartMenus init code):
$('#main-menu').on('click', function(e) {
if ($(e.target).closest('.mega-menu').length) {
e.stopPropagation();
}
});
This will only prevent hiding any mega menu when any element inside it is clicked.