Test the buttons, to see how everything works, you can play with the settings of the EA to adjust the lots, stop loss, take profit.... trading stop step..... just experiment with different settings and place trades on demo to learn the system. You have to make sure everything works correctly before you trade with real money (if you plan ). After you adjust the settings of the ea according to your strategy just save the chart template, and then you apply that template to every grid/pair.