Control Lot Size of Copy Signal

EA should control the signal copier lot size.  Weather by

 a. Control the MT4 account orders lot size as a whole.  means.  any order executed in specific account will have a controlled lot size.  if copy signal provide signal with 2 lots and MT4 account set to have 10 lots, immediately at the same time 8lots will be open.  So total lots will be 10 lots in the account.

 b. all lots in the MT4 account must be closed at the same time.  when a signal close the trade of 2 lots, all trades in eh accounts must be closed immodestly.