BackupExec File exclusions

Hi Team

Using BE2012 on Win 2008 Svr.

I want to create a Full/Diff backup regime to some folders spread over the C: and D: drive of my server.

I want the entire contents of the 3 folders on C: to be in the selection list.  From the two folders on D: I want to exclude .TIF, .JPG, .DFI and .XML from the selection list.

So I tick the folders off D: that I want, go to the Selection details, highlight one of the folders I just ticked, Modify, select Exclude and put in *.TIF; *.JPG; *.DFI; *.XML When I click OK the entire folder from D: disappears from the Selection details screen.  

I don't want to make the exclusions a global default as there may be files of those types in the folders on C: .

All suggestions gratefully recieved.

Thanx