An EA or Script that shows the lowest price of the candle or bar where a buy or sell position is currently open

Given a 1 min chart candlestick of any symbol

I want a script or an EA that shows me the lowest price of the candlestick where a buy order is still open or has just opened ( current buy position)

if there are multiple buy positions on multiple candles, I want the sum of all lowest prices of those candlesticks where those buy positions are currently open then displays that value on the chart