How to change the header in a cascade story map to not be the same on every page

[AshleighReeves]

I have circled the header I am trying to change. I want different text to show up when I scroll to the next page and it won't let me.

[OwenGeo]

Hi Ashley -- The title applies for all slides in an immersive section. If you need the title to change, you can string several immersive sections together.