Hi Tia,
Thanks for reaching out with your BoldGrid Post and Page Builder questions!
In order to make this happen you need to add an #ID to the text element you want to link to by hovering over the element and selecting the orange toggle > Advanced Controls then scrolling down to the Custom CSS section.
After adding your ID select your image and click the link icon in page editor and add the #ID your just created for the text element. Be sure to add the “#”. In my case it would look like this “#on-scroll”.
I hope this helps Tia. Please let us know if you have any other questions!