Hi Ellen,
If you want to change the font of a hyperlink in BoldGrid Post and Page Builder you add a span element and change the font by selecting your text and and clicking the “T” (Text Icon).
Once you have the element separated in a span you can change its properties. Since you’re not changing the element globally you’d need to select each link you wish to have this font and repeat the process.
I hope this helps Ellen, please let us know if you have any other questions for us!