Graphing only specific items in metrics report

Hi

I want to find out if the following is possible:

A server that is monitored, has 15 filesystems, all of them need to be monitored, but the customer isn't interested in the state of / or /var, but only in the production filesystems. How can I create a metrics report of only 3 of the 15 filesystems that is being monitored on the box? Would I need to create a separate monitoring group for these? I'm using hobbit 4.2.0

Thanks Stef