Charts setting to exclude preopen and post market prices

At present both intraday and daily candle prices includes prices traded at preopen and post market prices .but for correct analysis ( in my opinion) those two prices should be excluded in chart candles/bars . could you please add one more option in chart setting to exclude/include preopen /post market prices in charts candles.i am relying on closing price of day as last traded price at 3.30 pm and not as calculated price or post market price set by exchange .