Markerpress/Paypal redirect after Payment

How do I change the Paypal redirect to go to a certain page on my site after payment is completed to paypal account?

So:

Paypal payment made now I want the user to be redirected back to my site on a specific page.

Right now it redirects to

https://digitalunderwriter.com/store/shopping-cart/confirmation/

which is fine but I need a link on the above page that will redirect to:

https://digitalunderwriter.com/my-hub/

Thanks JIM