VM-3P75CT is not on VRM portal's device list if set to Generator role

is this behaviour intentional, or a bug?
if intentional, what is the logic behind it?
even though my generator is rarely used, just for extra backup in long outages, I would still want to be able to access all the data measured by this kind of meter, i.e. frequency, voltage, current etc.
I have noticed that even though not on the device list, some basic measurements, like power and energy output, are still logged and can be accessed through dedicated widgets like Advanced → Gateway → AC Genset, but I still find it strange, that voltage, frequency and PEN voltage, which are all important for stability and safety, are not logged at all, or not accessible to the user.