Sticky food menu

Hey guys, currently working with your theme, its been really great so far. But what I want to do now is to make the food menu items sticky like the header, is this possible? When I try and use other sticky header plugins it doesn’t work, I think its probably due to a conflict with the current sticky header. How would I go about making it sticky also?

I am comfortable with diving into code, so if you could point me in the right direction that would be great.

Cheers

Harry