Currently proportional sizing uses account balance.
A safer option would be to use free_margin to avoid overwhelming receiver which may be copying from multiple providers.o
So a third copy strategy option should be added to copy based on free margin.
See user comment for more info: https://www.mql5.com/en/market/product/68484#!tab=comments&page=2&comment=44797690
Currently proportional sizing uses account balance. A safer option would be to use free_margin to avoid overwhelming receiver which may be copying from multiple providers.o So a third copy strategy option should be added to copy based on free margin. See user comment for more info: https://www.mql5.com/en/market/product/68484#!tab=comments&page=2&comment=44797690