AIO Gateway + 3rd Party EV Charger

I know inside of the gateway has space for an extra breaker for a EV charger. Can a 3rd party charger (zappi) be wired up to it? does any one have pictures of how that connects up inside?

Then assuming you can, there is the question of wether its Load or Grid side? I have HA (predbat) running everything so I dont think battery draining would be an issue if on the Load side.

ma9mwah I have a Zappi connected into the Gateway. My installer connected the power feed to the EV breaker via the grid supply feed in the Gateway. so that the battery would not drain into the EV as it is not seen as a load.

Here is a photo of what my installer showed my how it would be connected:

[unknown] Thanks @CW thats perfect. I'll get my installers to do the same.