energy pulse sketch for multiple s0-counters

[killah78]

Hi,
I am doing (or better want to do...)experiments with Mysensors and an energymeter.
In the example-sketch there is only one digital input for one voltmeter.
I have several voltmeters with S0 Pulse output.

I am wondering if anybody has adopted the energy pulse sketch to more than one counter.
I found the nice example with 12 inputs and display with two arduinos. Nice one, but I need it easy without display and the possibility to run it via battery.

So has anybody adopted the energy pulse sketch to more that one input?
Appreciate your help

killah78