Recommended Stage to Live Page Update Process

Hi, I have a relatively complex page created on my clients stage server that I now want to move to their live site. What is the recommended way to do this for single posts/pages. With other themes I would come out of the builder view to see the source via the default editor and simply cut-and-paste this content between sites, however with the Enfold theme the default editor is blank. I’ve seen threads about going into debug mode to see the source, but (a) would this work cut-and-pasting between installations, and (b) is there an alternative mechanism that is recommended, either directly or via a plugin for handling single pages. Thanks Tim