How to make trailing stoploss work on select trades

 
I have a question, Let's say you have 2 buy trades of AUDUSD, I want the trailing stop to work on one trade but not the other. I have tried using the comment to distinguish them but its not working. How can someone go around this?
 
  1. Not a good idea to use comments, brokers can change comments, including complete replacement.

  2. Magic number only allows an EA to identify its trades from all others. Using OrdersTotal/OrdersHistoryTotal (MT4) or PositionsTotal (MT5), directly and/or no Magic number/symbol filtering on your OrderSelect / Position select loop means your code is incompatible with every EA (including itself on other charts and manual trading.)
              Symbol Doesn't equal Ordersymbol when another currency is added to another seperate chart . - MQL4 programming forum (2013)
              PositionClose is not working - MQL5 programming forum (2020.02.21)
              MagicNumber: "Magic" Identifier of the Order - MQL4 Articles (2006)
              Orders, Positions and Deals in MetaTrader 5 - MQL5 Articles 2011

    You need one Magic Number for each symbol/timeframe/strategy. Trade current timeframe, one strategy, and filter by symbol requires one MN.

    Use two MN.

 
William Roeder #:
  1. Not a good idea to use comments, brokers can change comments, including complete replacement.

  2. Magic number only allows an EA to identify its trades from all others. Using OrdersTotal/OrdersHistoryTotal (MT4) or PositionsTotal (MT5), directly and/or no Magic number/symbol filtering on your OrderSelect / Position select loop means your code is incompatible with every EA (including itself on other charts and manual trading.)
              Symbol Doesn't equal Ordersymbol when another currency is added to another seperate chart . - MQL4 programming forum (2013)
              PositionClose is not working - MQL5 programming forum (2020.02.21)
              MagicNumber: "Magic" Identifier of the Order - MQL4 Articles (2006)
              Orders, Positions and Deals in MetaTrader 5 - MQL5 Articles 2011

    You need one Magic Number for each symbol/timeframe/strategy. Trade current timeframe, one strategy, and filter by symbol requires one MN.

    Use two MN.

Thanks William for the feedback, let me do that.