Viewport Shortcut links above Page Tree

I can't find the section of code that would control whether or not the Shortcut links show above the Page Tree while in Viewport viewing mode. I have a single shortcut link I'd like to have displayed just above the page tree. Will you please tell me where in the code I can update this - and if you don't mind if I have to add a line could you tell me exactly the line to add? 

Thanks!
Laura