Probieren Sie diese modifizierte Version aus, bei der ich auch den Trailing Stop hinzugefügt habe:

DEFPARAM CumulateOrders = False
//DEFPARAM flatbefore = 090000
DEFPARAM flatafter= 213000

Timeframe(1h,UpdateOnClose)
Ema350 = average[350,1](close)

Timeframe(default)
ONCE Position  = 1         // KONSTANTE KONTRAKTANZAHL!!
ONCE Startzeit = 163000
ONCE Endzeit   = 193000
ONCE AboveEMA  = 0
// Spanne 1530-1630 in Hi and Lo ermitteln
// ————————
once Bars=4 // 15 x 4 Minute
once Hi=0
once Lo=0
If time = 163000 then // Das ist das Ende der 1545 Kerze. Also INCLUSIVE DIESER
Hi=highest[Bars](high)
Lo=lowest[Bars](low)
AboveEMA = (summation[4](close > Ema350) = 4)
IF Not OnMarket THEN
Spannepoints=low  + ((Hi-Lo) * 0.20)      // Spanne in Punkten
StartTrailing=low + ((Hi-Lo) * 0.40)      // Spanne in Punkten
ENDIF
endif

once Tradetag=0
If onmarket then
Tradetag=date
endif

OTD = Barindex - TradeIndex(1) > IntradayBarIndex //one trade X day

If not onmarket and time>= Startzeit and time < Endzeit and OTD and Tradetag<>date AND AboveEMA and (close < StartTrailing) and (close > Spannepoints) then
buy Position Lot AT Hi stop
SET stop price spannepoints
TrailingSL = 0

ENDIF
IF OnMarket AND TrailingSL = 0 THEN
IF close > StartTrailing THEN
TrailingSL = lowest[8](low)
SET stop price TrailingSL
ENDIF
ENDIF
IF OnMarket AND TrailingSL THEN
TrailingSL = max(TrailingSL,lowest[8](low))
SET stop price TrailingSL
ENDIF
graphonprice StartTrailing coloured("Blue")
graphonprice TrailingSL    coloured("Red")