Hello, I'm trying to understand what does this piece of code in ordert to do the same thing in metatrader 4 up=src-(Multiplier*atr) upPlot1 = plot(up, style=plot.style_linebr, linewidth=2, color=color.green) upPlot2 = plot(up[1], style=plot.style_linebr, linewidth=2, color=color.red) up1 = nz(up[1],...