To grant MyPark permissions, you must already have admin rights to it.

Go to the page you want to give rights to

Click on

Click on the Permissions Tab

if there is no admin role there already, click on Add a Role

Put in Admin role

Click Add individual User to get this interface to add users click OK

And after that you can click can return to the page and set permissions for Admin

Scroll down and click Save

and permissions should be done.  A few things may be skipped if the Admin role is already created.