I need to create from scratch a MT5 Expert Advisor for Manual Hedge Trading

Project Overview

I need an MT5 Expert Advisor that assists with manual trading. The EA should monitor horizontal lines that I place on the chart and execute trades when price reaches those lines.

Requirements

• The EA should monitor all horizontal lines (OBJ_HLINE) on the current chart.
• When the market price touches a horizontal line, the EA should execute an action based on the line color.
• The lot size should be read from the line description (for example: 0.10 ).
• Each line should trigger only once.
• After execution, the EA should either:
  • Change the line color, or
  • Delete the line (configurable). 
  • I would prefer deleting the horizontal line 

Line Color Actions

Trade Rules

• Use a configurable Magic Number.
• Execute trades only once per line.
• Allow configurable slippage.
• Work only on the chart symbol.
• Support hedging accounts (MT5 hedge mode).

Future Expansion

The code should be modular so the following features can be added later:

• Break-even
• Trailing stop
• Basket take profit
• Basket stop loss
• Partial close
• Multiple hedge levels
• Trade panel
• Notifications (popup, email, push)

Goal

The EA should act as a manual trading assistant, where I control trading simply by placing colored horizontal lines on the chart. No automatic market analysis or indicators are required—the EA only reacts to the horizontal lines I draw.