At the moment when selecting a computer to have the agent or a backup job applied I go to the 'Apply To' drop down and select 'Computers', once in there I then have to create a rule that says 'exclude computers not in' then drop the filter box down and select 'Computer list' then type in the computer name in the next box. I see the option to select a filter or a group but I dont know where I configure 'filters' or 'groups' - can somebody advise?