Page Layout Buttons Disabled on Ribbon


You may face that altough:

  1. You have permissions to edit the layout
  2. The page Layouts are available to be changed
  3. The page is checked out
  4. And the page "seems" to be in edit mode

You still can't change the layout. This seems a bug, as the layout button is enable by the querystring EditMode. So try to add ControlMode=Edit parameter in the querystring, and page layout should be enabled if the prerequisites are met.