Scalper EA to be re-engineered

See the attached EA and tweak to include the following:

1. Maximum Lot tradeable

2. Risk Management (Max drawdown acceptable in %)

3. Hedge with same ccy traded i.e. when the EA takes a long position, a short position of the same size must be taken.

4. Profit taken at any time must take all other positions into account, if a negative position is to be closed, then a positive one of greater value must be closed also ensuring the account remains in positive territory.

All other properties of the EA must not be changed. 

Please can you study what the bot does before beginning.

Thanks,