To create the Local data backup set you need to open Xopero and run the Backup set wizard by clicking on New backup set button in My backup sets tab.
In the Backup set wizard select Local data in What you want to backup? field. Don’t forget to define the backup set name.
In the Local data panel what you need to do is to select files or catalogs to backup. Just mark checkbox next to the data you want to backup.
After that click Save to create new backup set.