Webi Line chart report

Hello,

I have created one webi line chart where I want to show conditional coloring.

I have created Dual line chart with below two condition on value axis.

Value axis 1: AMOUNT

Value Axis 2: If Flag = X then AMOUNT

so I want to show value axis 1 for all amount values and value axis 2 should show only those amount values where flag = X.

however lines of value axis 1 overlap on value axis 2 values in chart. How can we set priority of value axis 2 as always show, i.e overlap on value axis 1 values.

Any help will be appreciated.

Thanks

Swati