There is a ‘hack’ that partially works: use a ‘virtual PV inverter’ in Node-RED connected to AC-out. If you feed it a negative current and power, the power will be subtracted from the other AC loads in VRM dashboard without adding to the solar power!. Unfortunately it still does get added to the power consumption history for no apparent good reason but at least the instantaneous dashboard readouts are much ‘rational’ this way.
I have started to document some of my (Node-RED based) modifications on my DESS trade test system, including this ‘hack’ to remove AC loads from a large additional battery charger that has to be on ACout-2 for safety and good system design requirements.
See here for more: UpCycle Hybrid DESS Trade - #6 by UpCycleElectric