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help with MT4 Copy trading - Contract sizes

Hi all, Please let me know how it works if I copy from an account that has a contract size of 1 for NAS100 and my contract size with my broker is 10 for NAS100. Does the copy software calculate this automatically or do I need to reduce my risk % setting when copying

I have a basic coding error for MT4 EA

Hello, please see the two errors attached. I will paste the code below, I would greatly appreciate if you could tell me what to put exactly where. Thanks in advance #property version "1.00" #property strict input double Lots= 0.01 ; input double TrailingStopStart= 100 ; input double