I have the same issue with Enfold and Gravity Form.
With theme being Enfold, I cannot edit Forms.
With theme being 2015, I can.
I thus suggest that there is a conflict between Enfold and Gravity forms – the problem on the side of Enfold.
Fantastic – case solved :) Thanks a lot.
Great support – of even a third party product. Much appreciated!
I used
Dashboard > Enfold >Enfold Theme Options > Footer
and then in the field
Footer:
(c) Copyright 2015 AXcademy [nolink]
which then displays
(c) Copyright 2015 AXcademy
on the webpage – without the Kriesl/Enfold link that was shown before.