how do i combine two forms into one? Or copy and past sections from one form to another?

It is possible to copy fields from one form to another. You can achieve this with our app "Field Manager": http://apps.jotform.com/app/field_manager 

You can also visit http://fieldmanager.jotform.io/ 

Field manager app will give you flexibility to copy/clone one or more field from one form to another. Please try this app and get back to us if you have any questions.