Maximum number of external variables ???

[[Deleted]]

I am new to MQL programming , I am in the process of creating an EA and I need to have the following user defined variables i.e (Lots, StopLoss, TakeProfit3,TakeProfit1, TakeProfit2, TrailingStop) is it possible to have more variables than the four standard user-defined variables in MQL i.e (Lots, StopLoss, TakeProfit, TrailingStop) ?
I would really appreciate an answer on this..
thanks

[Slava]

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