Hello,
Got an AIO, to be installed imminently once some "civils" are completed to stand it on.

I have a small 2kW system on my garage, connected to the sub-distribution board for the garage circuit.
It's remote enough from the house, that there's no way I'm having the PV circuit wired into the AIO's PV infeed circuit.

It'll stay as it is, ultimately feeding the house via the main house distribution board.

Has anyone else got a similar install with an AIO? Does the Gateway detect export and charge accordingly with this type of install?

I will use the PV circuit on the AIO later on, when I have a much larger installation on the roof (but that's some way off yet).