Metatrader Alerts

2 Indicators 1) DSS Bressert (200,20) on 15 Min chart 2) DSS Bressert (13,8) on 15 Min chart Alerts based on 2 conditions: (and alert only once, not on every candle) 1) if DSS (200,20) is below 50, sound alert when DSS (13,8) reaches 60; 2) if DSS (200,20) is above 50, sound alert when DSS (13.8) reaches 40; This is a mechanical trading system (I do other overlays / checks on top of it), so what I described is exactly what I want (i.e. this doesn't have to be a complex EA but a simple indicator fix + alerts as indicated).