Modifying an EA

I already have the robot, and I would like to build another one based on the same strategy. I can show you how it works, as it is already ready. I just want to simplify some parameters and functions. I don't have the source code. The story is long. In short, I trusted the wrong person. I passed the strategy and received the compiled EA file, when I asked for the source code I was blocked The strategy is simple, it

Construction of trading panel Trading panel with vertical and horizontal stop take profit lines and multiplication grid 1 horizontal and vertical purchase and sales lines and placement of orders in a grid with order number multiplier 2 that all lines must be visible with stop and take profits pre orders, all lines must be visible on the chart I'll post a picture to give you an idea of what it could be

Preciso de um Robo q faca o sinal de alerta do cruzamento de 2 linhas medias (21 periodos simples e exponencial) para 3 times frames especiicos. Algo simples e pratico, so isso