OK, just to go over the rules.
When a ZZ2 line draws then the candles will be greyed out until the next ZZ2 line draws in and the bias will continue and the new candles will appear.
You can see in both charts that the candles are greyed out... this is correct. However, should price continue passed the first ZZ2 line then it should colour in the candle until price is going back then it will be greyed out until the next ZZ2 line draws in. You asked for certain areas to be greyed out, that is the rules, can't change it because a possible trade could have been made. So far it is doing exactly as it says on the label :-)
Xard777