Add this line at the very beginning of your code:
DEFPARAM DrawOnLastBarOnly = true
but this will remove all previous segments and rectangles.
If this is fine for you, then it’s the best solution, otherwise you will need to use two copies of the same indicator, one that draws all the segments and rectangles (it’s the one you are using now), the other one is the same, but will only plot the text at each new bar, which is this one:
DEFPARAM DrawOnLastBarOnly = true
// =======================================
// DAILY-WERTE
// =======================================
timeframe(daily)
// Tages-Eröffnung
dailyOpen = Open
// Linien-Level
up65 = dailyOpen + 65
up75 = dailyOpen + 75
up115 = dailyOpen + 115
up125 = dailyOpen + 125
up160 = dailyOpen + 160
down65 = dailyOpen - 65
down75 = dailyopen - 75
down115 = dailyOpen - 115
down125 = dailyOpen - 125
down160 = dailyOpen - 160
// =======================================
// ZURÜCK ZU M15
// =======================================
timeframe(default)
// Linien nur von 08:00 bis 13:00 anzeigen
IF Time >= 080000 AND Time <= 190000 THEN
// ===== OBERHALB DES OPENS =====
//DRAWSEGMENT(barindex, up65, barindex + 1, up65) COLOURED(255,0,0)style(line,2)
DrawText("#up65#", barindex + 3, up65, dialog, bold, 10) COLOURED(255,0,0)
//DRAWSEGMENT(barindex, up75, barindex + 1, up75) COLOURED(255,0,0)style(dottedline,2)
DrawText("#up75#", barindex + 3, up75, dialog, bold, 10) COLOURED(255,0,0)
//DRAWSEGMENT(barindex, up115, barindex + 1, up115) COLOURED(255,0,0)style(line,2)
DrawText("#up115#", barindex + 3, up115, dialog, bold, 10) COLOURED(255,0,0)
//DRAWSEGMENT(barindex, up125, barindex + 1, up125) COLOURED(255,0,0)style(dottedline, 2)
DrawText("#up125#", barindex + 3, up125, dialog, bold, 10) COLOURED(255,0,0)
//DRAWSEGMENT(barindex, up160, barindex + 1, up160) COLOURED(0,0,0)style(line,2)
DrawText("#up160#", barindex + 3, up160, dialog, bold, 10) COLOURED(255,0,0)
//DRAWRECTANGLE(barindex, down65, barindex+1, down75) fillcolor(200,200,255,230) coloured(200,200,255,230)
//DRAWRECTANGLE(barindex, down115, barindex+1, down125) fillcolor(200,200,255,230) coloured(200,200,255,230)
//DRAWRECTANGLE(barindex, up65, barindex+1, up75) fillcolor(200,200,255,230) coloured(200,200,255,230)
//DRAWRECTANGLE(barindex, up115, barindex+1, up125) fillcolor(200,200,255,230) coloured(200,200,255,230)
// ===== UNTERHALB DES OPENS =====
//DRAWSEGMENT(barindex, down65, barindex + 1, down65) COLOURED(0,0,255)style(line,2)
DrawText("#down65#", barindex + 3, down65, dialog, bold, 10) COLOURED(255,0,0)
//DRAWSEGMENT(barindex, down75, barindex + 1, down75) COLOURED(0,0,255)style(dottedline,2)
DrawText("#down75#", barindex + 3, down75, dialog, bold, 10) COLOURED(255,0,0)
//DRAWSEGMENT(barindex, down115, barindex + 1, down115) COLOURED(0,0,255)style(line,2)
DrawText("#down115#", barindex + 3, down115, dialog, bold, 10) COLOURED(255,0,0)
//DRAWSEGMENT(barindex, down125, barindex + 1, down125) COLOURED(0,0,255)style(dottedline,2)
DrawText("#down125#", barindex + 3, down125, dialog, bold, 10) COLOURED(255,0,0)
//DRAWSEGMENT(barindex, down160, barindex + 1, down160) COLOURED(0,0,0)style(line,2)
DrawText("#down160#", barindex + 3, down160, dialog, bold, 10) COLOURED(255,0,0)
ENDIF
RETURN
add both the indicators on your chart (using different names).