Hi! Is there a way to add a Visualforce Tab to the tabs section on a skuid page?

There is a page API Wrinkle here. 

1. If using a V1 page - Dave is correct.  Template with the iframe code…  (Just remember to make sure the template is connected to a model so the merge sytax actually connects to data. 

2. If using a V2 page - you need to use a TEXT component and put the iframe code in the “advanced” property.  Its currently the only place you can inject the HTML into the skuid page.  That will be changing,  but for now - that is what you have to do.