Addition to a functional EA of conditions for opening and closing transactions

The calculation of opening conditions is binary SL is obtained using risk, atr and the value of a pip.

The logic for calculating lots for opening using Risk and ATR for SL must also contain the value of a pips and is as follows:

Risk multiplied by balance gives the value of SL in dollars;

ATR gives the SL value in pips, which must be multiplied by the value of one pips in the respective pair (the second currency of the pair)

Then divide SL in dollars by SL in pips and get the number of lots.

The lot size will be set so that if the trade hits the stop loss, the loss will correspond to the percentage risk per trade.