2 pdu's in one graph?

[pustherif]

Hi,

I work in a datacenter and we are monitoring our Eaton ePDU's using cacti. Each of our cabins have 2 pdus. Can cacti give us a total of 2 pdu's watt usege? There is no problem monitoring 1 pdu and and it's each port. Can cacti add and show 2 or more (total watt usage of all pdu's in datacenter) in one graph?