Add Length to Toolbox

I want to use an M5x0.8 x 22mm lg shcs but can't find one in any standard (I can buy from McMaster-Carr).  I just migrated to 2010 from 2008, in 2008 at the end of the list of of screws in toolbox there was an empty space for adding configs.  How do I go about doing that now?

Thanks,

Rob

SolidworksToolbox