[Request] DPL: Support grouping of inverters

[schlimmchen]

Is your feature request related to a problem? Please describe.

No response

Describe the solution you'd like

Allow to assign inverters to a specific power meter value, i.e., a phase, such that setups with multiple inverters but split over multiple phases can be governed such that they only produce as much as is consumed on that particular phase.

Describe alternatives you've considered

No response

Additional context

No response