Change Text in Banner of Full Width Template

I have Mesmerize Pro as my wordpress theme.

I have an “About” page using the Full Page Template. The Banner at the top of the page has “About” as text in the middle of the banner. This text doesn’t appear to be editable aside from color and a few other options. I want to actually change the content of the text, and preferably the location. Is this possible?

I can change the text of the Title and Subtitles on the front page header. I want to do the same thing on every page.

The page I need help with: [log in to see the link]