When at least one of these drawdown options is enabled Forex Copier will stop processing "Open order" signals from Source account when Drawdown percent
or Drawdown value is too big or Equity of Source/Receiver account is lesser than entered value. 
Drawdown percent is calculated as the difference between current Equity and maximum historical Equity in percentage. 
To activate these settings please open Forex Copier 2 program, click “Settings” on Source account if you want to calculate the drawdown of Source account or on Receiver account if you want to calculate a drawdown of Receiver account,
then go to “Emergency stop” tab, activate “Use emergency stop” option and then activate necessary drawdown setting(s).
If you activate “Close all orders if one of above conditions is met” then Forex Copier will close all orders on this account in case of drawdown.
After this, click “Save and Finish” and then click “Apply Scheme” button to apply these new settings.