You can edit an existing template default set in the grid in the Currently Available Template Default Sets section.
Note: A
NextGen® Adaptive Content Engine upgrade overwrites any modifications to the original default sets that are packaged as a part of the
NextGen® Adaptive Content Engine. Before a template default set is modified, it is recommended that you create a copy of the existing set and make customizations to the new set. For more information on how to create a copy of the existing set, see
Create a New Copy of an Existing Template Default Set