How do you make a buy/sell switcher ea?

[NamiyrD]

I want an ea to switch between buy and sell per profit made and continue to trade either buy or sell per loss made whenever there's no trade/order available. it's very hard to pull off.

[l'andorrà]

Not sure I fully understand. Do you mean using char buttons to choose buys and sells? I don't get that 'per profit/per loss' part.