Good evening Canaan and welcome back!
Thank you for reaching out to us.
I would love to help you with this topic.
Is it possible to show something in the header html on the events homepage only?
Absolutely, you can do that. However, this will require some template customization.
Just to set expectations, as you might know, the scope of our support is mostly to get our wonderful customers started on the right track to customize their site and to help them in case of issues. We unfortunately do not provide complete support for customization.
You might want to read our Themer’s guide to get a sense of how that works.
As an alternative, if you don’t feel confortable doing the code yourself, you could hire one of our recommended customizers to do the customization for you.
Let me know if that helps.
Have a great day!
Geoff B.