Hoymiles DTU microinverters (PV)

Exactly what I need. So you managed to add all the inverters without any account? The gateway I found is the W100, with a USB stick form factor, is that the one?
And do you know then what is the purpose of the pro account?

Anyway, thank you very much for your answers, at least I know that I’ll be able to gather data on my little solar farm.