Add text and/or link to FSA Calculator

Summary:

I have a client that wants to add text and/or a link to the FSA calculator for clarification. We have run into some issues and it doesn't seem like it is possible to personalize this area.

Has anyone been able to add personalizations to the FSA Calculators?

Content (required):

When we set up our sandbox and navigate to the FSA calculator page, we select Administration but instead of Edit pages, we see Edit Page in Visual Builder. When selected, we get an error.

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):