It is not possible to modify separately the AC wires of inverters.
If I set the AC wire loss factor with "per inverter" function, it is set just one of the sub array.
After I change to "whole system" function and back to "per inverter" in one step it will be set the sub-arrays, but it is not able to modify the wire section by inverters.
The single line diagram offer the modification availablety, but it is not working.