Sunsynk settings for pv use to non essentials

Hi all.The pics below are from MY 8kw setup.I have no non essential and the first pic shows how my system works and it works well.With my settings no ct coil or house (non essential is visible) ,I played with the settings to show them.The ups as we all know is the house load and the rest is easy.

My first question is that when I am " exporting ie Winding my meter backwards" the load on UPS goes up dramatically even if my house load is at its usual 250w.Lets say i am "exporting 3kw" the pv produces it comfortably then of course house load via ups is taken care of and the batteries topped up if needed but the figure that reflects on the ups can go up to 5 or 6000w BUT I am not drawing that in the house and wondered what figure that reflected as I have added up the numbers and they dont make sense.Its not a big deal as the system is doing what I want it to do such as winding my old meter back and of course supplying the house.

Second question is for my neighbour has a 5kw ss and the stove and geyser is on non essential.

Is there a way to supply the 2 kw geyser element with excess pv either via the aux port (which hasnt been used yet) or via the non essential feed which is the  house symbol on pic 3.

If so what settings do I use.On the aux and advanced page there are some settings which I messed around with but no luck.

Thanks guys