Simple Mql5 to MQL4 conversion Breakeven adjustment

The MQL5 "EAforTest" contains a void function called BEP4 which applies a Take Profit that sets the take profit off the group of trades of a specific side and symbol to a loss. For example, 4 EURUSD Sell trades open with an average price of  1.085, A specified loss of $50 is wanted once the drawdown of the 4 trades reaches -$200. Once the value is hit a take profit with a defined loss is set to $50 (NOT A STOPLOSS). I need the MQL5 version converted to MQL4 so that the entire BEP4 works in a void BEP4() loop. 

1. Convert to MQL4

2. Test functions

3. Isolate code to work entirely in a singular void BEP4() statement.