Hi Alexsandar,
One way to do this is to copy each of your existing notifications (so that you maintain all the same criteria and email set up) and change just the notify whom to yourself. This way you get an exact copy of the notifications that go out to your Product Managers, but instead of being broken up like they normally are they all come to you. This way you get email notifications under the same conditions with the same look and you can audit your notifications separate from your existing notifications to the Product Managers.