LS420 - Filters in Backup

[RedArrow]

Hi.  I have a LS420 and am backing upfrom my LS420 setup as a Raid 1 to a USB drive atached to the LS unit.  I do not want to back up everythingg in a shared drive and need to know how the Filter box works to limit what is transfered.  I cannot find any information on this feature.
I also cannot see how to attach a file as the Attachments and other options does not give the option of an attachement.
Regards

[AppliedArts]

I have the same question ... anyone know how to use Filters in backup?

[AppliedArts]

I see that the 'filters' is just for the window - not something active during backup.  There are no filters to exclude files or directories from backup