You must be a 'Content manager' to access and modify masters for your group.
To unarchive a master:
- Click on the 'Masters' icon
on the left panel on the homepage.
- The list of masters is displayed.
- Click on this icon
at the top right of the page.
- Archived masters appear struck through.
- Click on this icon
to the right of the master you want to recover.
- The master once again appears in the list, not struck through.
NB: It is not possible to permanently delete a master. You can only archive it.