According to the documentation found here:
I should be able to go:
WordPress Dashboard >> Appearance >> Customize >> Jumbotron
But I don’t have the Jumbotron option. See attachment.
What am I missing?
Hey there
Please check frontpage sections on your screenshot
Sorry I should have already mentioned I’ve looked there, here’s what it looks like:
(see attachement(
It is where you directed, my apologies.
It’s Appearance → Customizer → Front Page Sections → Jumbotron Section → Backgrounds (Right of Colors) → …
Thanks for your help 
You are welcome
I will close this case now