So, decide - what can be risked in each trade? There are many options, and selecting the correct one is not always easy. To solve this problem, I made the lot_lib.mqh libraryUsage: - download the lot_lib.mqh to the MetaTrader 4\experts\include folder; - add the...
from https://tradingrobots.net/lot-lib-library-for-metatrader-4/