The information I want is contained in the "System Uptime Report" in the other reports section, but I cannot have it send me the specific data I require.  I assume I need a query report?

I need to be able to define a group of devices, have a months worth of data (need date) for those only and have the field called uptime.  The devices I would want to define by name and domain.  I ideally want a line graph of the output but assume I would need another tool to do that.