You will have to add a global variable or read the most recent closed trade to determine if it made profit or lost. Then you can add this
Ilo = Ilo * multiplyer;
But be careful, this code will NOT multiply cascading, the Ilo value is recalculated for every trade.
if (Ilo > 100) Ilo = 100;
E.g. with multiplyer 2, Margin of 10k and Risk of 3%:
Trade1: Ilo = 4.10, lost 300
Trade2: Ilo = 7.93 (3.97 * 2), lost 200
Trade3: Ilo = 7,77 (3,89 * 2)
If you want to multiply it cascading, you will have to also save the last used lot size when opening a Trade.
Edit: Just forgot the warning ... be careful when using the "original" version of this EA. It may open more than one position at a time, so you enter a trade without knowing how the last one closed.