HFSS previous Graphs colors always change for each simulation

Hi,

I define variables and change theis value and look at S11 graph which include number of graphs from the previous simulations, the problem is that every simulation the color of the previous graphs changed, How i can fixing the color of the previous graphs ?

You can always manually change the color of the graphs. ^^,

what if the graphs values change when the frequency sweep is increased? this happened for the helical array design using hfss.any idea?

It is strange that the color always change in cummulative mode, it is must be a way to disable the change.