Edmund Tan

I will normally trade one currency pair at a time and I will have at least 4 open trades to more than 20 open trades at any one time.  I need an EA or script that can allow me to close all my open trades all at once with one click, or at the very least close one trade after another quickly. 

I know it sounds like a simple task to perform, but I am new to EAs and this is all I need for my trading at the moment.  TQ.