How do I add a distressed look to an existing design in Corel X6 Graphics Suite in Windows 8?

Hello all. I have a design for our client and now they want a distressed look added to the entire design. I thought somewhere in Corel there were overlays that could do this, but they are hiding from me currently.

What is the easiest way to go about this? Do I have to design these myself or any they out there somewhere?

Please and thank you for your knowledge!  Jerri