I have a load of APC metered PDUs which i am using a universal device poller to get amps used on each PDU. I would like to display live and historically - preferably in a chart as well - the toal power being used by the PDUs. Is there any way to sum the results of all of the pollers and then transform that sum so I can get a result in Watts or kW? I am using Orion 9.1