Trend Groups that do not have a “#” beside their name will have a green check mark in the Set As Default field, indicating that the field may be edited to designate the trend group as the default trend version.
Templates that point to the default trend version will automatically be updated whenever the default trend group is updated or changed. Projects that point to the default trend version will prompt users to update the trend version or confirm that they want the project to continue to use the old default version: