VMware policy - Virtual Disk Selection

Hello,

I'm running NB7.5.0.6 and vSphere 4.0. We have a VM guest that we currently backup using the VMware policy, including all virtual disks. I have been asked to stop backing up one of the virtual data disks, but keep backing up the remaining virtual data disks. I can see the option to "Exclude Data disks" which is great, but not quite what I am being asked for. Is it possible to select a specific virtual disk to exclude on a particular VMware guest, whilst continuing to backup the remaining virtual disks?

Any advice appreciated.

Carl