Hey, guys. I'm backing up my data on my iMac to a Goflex drive in another room. I just got it setup and am about to backup. Only thing is, I have a LOT of data, and I'm pretty sure even my 2 TB Goflex is gonna be filled soon. Is it possible to make one master backup, and then set some exclusions for FUTURE backups? Thanks. Any extra tips on saving space is welcome 