MQL5 ve MQL4'te alım-satım uygulamaları geliştirme

Hello, This is a simple M5 Expert Advisor based only on price movement. The system opens trades every defined price distance (default 1 USD) and follows price direction (BUY when price goes up, SELL when price goes down). Both BUY and SELL trades can be opened within the same candle. All trades must be closed at the candle close, and the system must reset on every new candle. No indicators, no EMA, no filters — only

"For example, if I execute a sell order at the price shown in the image I sent, will the trade be opened exactly at that price, or will there be slippage because the actual market price is different? ​If slippage occurs, at what price will the trade execute when I click 'sell,' and at what price will it close when I exit the position? Also, is it possible to add another line to the chart that shows the actual price