How to get client separated backup selections

Hello,

We Use NetBackup 7.5.0.5 on an Windows Server 2008 R2 Master Server and 6 NetBackup Appliances as Media Servers.

I have a questian about the possibility of separating the backup selection between the clients in one Policy. For a better understanding I'll give you an example: 

Policy:

Clients:

Client_A

Client_B

Backup Selection:

Client_A/BackupSelection_A

Client_B/BackupSelection_B

I would be very grateful for further assistance.

Regards Sebastian