How to control Grid AC setpoint remotely

I have a Cerbo GX controlling a grid-connected Multiplus-II and battery. I would like to be able to control the AC setpoint remotely in VRM or via the API using Node-Red. Is this possible? It seems like a basic setting!
Any help appreciated
Thanks

Locally is easy with node red. You’d need to use the MQTT broker to set it remotely.
(moving to modifications)

If you want to do it manually through the VRM, you can access that option through the remote console. You can also do it automatically through Node-RED, however extra knowledge is needed.