Bimmercode screen upgrade is not working

[I3 lover]

So I have just bought a April 2022 bmw i3s and am trying to upgrade the screen to a 10.25 inch screen whit bimmercode and have been following the prosses to upgrading the screen and have running into a few problems. when I follow the guides which are <Headunit<expert mode<3000hmi<DISPLAY_SIZE_RESOLUTION. And that is were it goes wrong because there is no DISPLAY_SIZE_RESOLUTION option so what do I do. I have already spent the money