Working with backup sets : Oracle database backup sets (Windows or Linux) : Creating an Oracle database backup set (Linux DS-Client) : Specifying the backup items
 
Specifying the backup items
1. On the Select items for backup page, add the items you want to back up:
To add individual items, browse the Database List, select the required items, and then click Add.
To add the full Oracle Database, select the parent instance, and then click Add.
You can also exclude individual databases after you have already added the entire (parent) instance.
F1 Help: "Select Items for Backup (Linux DS-Client)"
2. Click Next.