How can I edit/change my heading?

You can change your heading format in multiple ways. Change your headings by Size (Using the H1, H2, H3 or H4 presets), Heading Text, Secondary Text as well as position of the text. You can also add a bottom decorator by clicking the button that says “Show Bottom Decorator?” Hit Done and you can edit it accordingly.

If you want to edit your heading in the future, all you need to do is just click on you heading to bring the menu up.