Add link to profile pop-up

[angeljs]

I'm not sure if this is the right message board, but I'm wanting to add another link to the member pop-up box while viewing a post. For example, when viewing a post, you click on the member's name and a box pops-up with links to the their blog, posts, articles etc. I'd like to add an extra link to this box, but am not sure which template to modify, and what to look for in it.