On your demo pages you show an example of Multi icons. I have not been able to find anything in the documentation on how to do that. The reason is, I want only some of the headers to have expansions and for those that do NOT have expansions, I don\'t want to show an icon. In other words, the visibility of the icon indicates there is more content.

Hi,
Welcome to PickPlugins.
This feature is available on our Pro version. With our pro version installed, if you expand a specific accordion item, you can set an individual icon. If you don't want an icon, just write an empty space and save your accordion.
Screenshot: https://i.imgur.com/99HKlO1.png
If you want to buy premium - https://pickplugins.com/item/accordions-html-css3-responsive-accordion-grid-for-wordpress/
I’m sorry. My English could be better. I should have used an appropriate word.
Whatever, glad to know you’ve fixed the issue. Let us know if you face any issues.
Regards.