I was just trying a Phoenix 12/500 inverter with a VE.Direct to Bluetooth dongle, and while this works well in the "logged-in" mode, the instant readout only displays the battery voltage and inverter state (inverting/searching/off).
Since there are only two other parameters available for readout (in the "logged-in" mode) from this device, namely the AC voltage and the % load, could these not also be included in the instant readout?
In particular, the % load is perhaps the most useful parameter to be able to see.