Hi Virginia,
At the moment, there is no way to edit the ones that cannot be edit. These reports are actually through the API and does not have the standard reporting functionality that you see. If need help building reports based on a similar report, you can contact your CSM or attend one of our webinars. I would like to inform you that we have a new Report Module coming out by the end of this year that will provide a lot more functionality and we are close to releasing it!