Grand college theme support

Hello, I’m using Grand College theme for this site and have enabled portfolio item on the homepage with the category name being ‘Our members’. As you can see, I’m having to display a separate line – ‘Click here to see the Full List of Our members’ to link it to an URL. There is no option to link the button of the portfolio name to a custom URL, like I’d like to link the button ‘Our members’ to a custom URL. How do I do that? Any code/tweak would be appreciated