When I design a SolarEdge system I am not able to adjust the "Nominal Pnom Ratio" in the "Strings Configuration" dialog box. It's default value is 1.35 but I want to design up to 1.55. When I change the value and click the "Reinitializes Inverter List" button the value changes back to 1.35. I've adjusted overload loss in the project settings to 10%. I've also adjusted the hidden parameters that relate to oversizing. I've also adjusted the "Maximum Input Power" value in the inverter OND file. How can I adjust the maximum Pnom ratio?