How do I format a text anchor destination?

I have an InDesign Map document which was originally created in Illustrator, saved as a PDF and a layer added in InDesign to create hyperlinks. I know I can format the text of the hyperlink Source, but I cannot find information anywhere on formatting the Destination. There are multiple source links (100+)  in an index. When a link is clicked, I need to be able to see exactly where the link has taken me, either by highlighting or changing the colour of the Destination. In essence I'm looking to navigate almost as if it was a web page. There's a series of bookmarks to link back to sections of the index.

Thanks

Nick

using InDesign 2020