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Это код, который я использую в atm. (Спасибо Бьорну Мистиену)

 
len1 = input(10, minval=1, title="Length")
len2 = input(21, minval=1, title="Length")
len3 = input(55, minval=1, title="Length")
len4 = input(100, minval=1, title="Length")
len5 = input(200, minval=1, title="Length")
src  = input(close, title="Source")

var bool show_hlines = input(true, "Show horizontal lines", input.bool)
var bool show_emas   = not show_hlines

var color_entryema    = color.green
var color_fastema     = color.orange
var color_mediumema   = color.red
var color_slowema     = color.white
var color_veryslowema = color.purple


var line_entryema    = line.new(x1=na, y1=na, x2=na, y2=na, xloc=xloc.bar_time, extend=extend.both, color=show_hlines ? color_entryema    : na, style=line.style_solid)
var line_fastema     = line.new(x1=na, y1=na, x2=na, y2=na, xloc=xloc.bar_time, extend=extend.both, color=show_hlines ? color_fastema     : na, style=line.style_solid)
var line_mediumema   = line.new(x1=na, y1=na, x2=na, y2=na, xloc=xloc.bar_time, extend=extend.both, color=show_hlines ? color_mediumema   : na, style=line.style_solid)
var line_slowema     = line.new(x1=na, y1=na, x2=na, y2=na, xloc=xloc.bar_time, extend=extend.both, color=show_hlines ? color_slowema     : na, style=line.style_solid)
var line_veryslowema = line.new(x1=na, y1=na, x2=na, y2=na, xloc=xloc.bar_time, extend=extend.both, color=show_hlines ? color_veryslowema : na, style=line.style_solid)

f_moveLine(_id, _x, _y) =>
    line.set_xy1(_id, _x,   _y)
    line.set_xy2(_id, _x 1, _y)

entryema    = ema(src, len1)
fastema     = ema(src, len2)
mediumema   = ema(src, len3)
slowema     = ema(src, len4)
veryslowema = ema(src, len5)

if (hour==0 and minute==0 and year(time)==year(timenow) and month(time)==month(timenow) and dayofmonth(time)==dayofmonth(timenow))
    f_moveLine(line_entryema,    time, entryema)
    f_moveLine(line_fastema,     time, fastema)
    f_moveLine(line_mediumema,   time, mediumema)
    f_moveLine(line_slowema,     time, slowema)
    f_moveLine(line_veryslowema, time, veryslowema)
    
plot(entryema,    color=show_emas ? color_entryema    : na, linewidth=2, title="Entry EMA")
plot(fastema,     color=show_emas ? color_fastema     : na, linewidth=2, title="Fast EMA")
plot(mediumema,   color=show_emas ? color_mediumema   : na, linewidth=2, title="Medium EMA")
plot(slowema,     color=show_emas ? color_slowema     : na, linewidth=2, title="Slow EMA")
plot(veryslowema, color=show_emas ? color_veryslowema : na, linewidth=2, title="Veryslow EMA") 
 

Теперь я хочу пометить эти горизонтальные линии EMA 10, 21 EMA и т.д. Я уже добавил готовый код для помеченных горизонтальных линий закрытия за день и неделю и попытался использовать для этого «тот же» код, но, похоже, ничего не работает. Я следовал той же процедуре, но, вероятно, упустил что-то важное.

 lblOffset = input(30, title="Label Offset")
showWeekly = input(true, type=input.bool, title="Show Weekly?")
wValue = input("Previous Week", title="Candle Selection", options=["Previous Week", "Current Week"])
wColor = input("orange", title="Weekly color", options=["aqua","black","blue","fuchsia","gray","green","lime","maroon","navy","olive","orange","purple","red","silver","teal","white","yellow"])
wStyle = input("solid", title="Weekly style", options=['solid','dotted','dashed'])
wWidth = input(1, title="Weekly Width")
showDaily = input(true, type=input.bool, title="Show Daily?")
dValue = input("Previous Day", title="Candle Selection", options=["Previous Day", "Current Day"])
dColor = input("blue", title="Daily color", options=["aqua","black","blue","fuchsia","gray","green","lime","maroon","navy","olive","orange","purple","red","silver","teal","white","yellow"])
dStyle = input("solid", title="Daily style", options=['solid','dotted','dashed'])
dWidth = input(1, title="Daily Width")


var wCloseLine = line(na)
var wCloseLbl = label(na)
var int wFrom = 0
var int wTo = 0

wClose = wValue == "Previous Week" ? security(syminfo.tickerid, 'W', close[1], gaps = barmerge.gaps_off,  lookahead = barmerge.lookahead_on)[1] : security(syminfo.tickerid, 'W', close, gaps = barmerge.gaps_off,  lookahead = barmerge.lookahead_on)

if change(time('W'))
    wFrom := bar_index[1]
    wTo   := bar_index    
    

var dCloseLine = line(na)
var dCloseLbl = label(na)
var int dFrom = 0
var int dTo = 0

dClose = dValue == "Previous Day" ? security(syminfo.tickerid, 'D', close[1], gaps = barmerge.gaps_off,  lookahead = barmerge.lookahead_on)[1] : security(syminfo.tickerid, 'D', close, gaps = barmerge.gaps_off,  lookahead = barmerge.lookahead_on)

if change(time('D'))
    dFrom := bar_index[1]
    dTo   := bar_index    


f_calc_bar_time(offset) => ret = time   ((time-time[1]) * offset)


f_set_color(selection)=>
    ret = color.black
    if selection == "gray"
        ret := color.gray
    if selection == "green"
        ret := color.green
    if selection == "aqua"
        ret := color.aqua
    if selection == "blue"
        ret := color.blue
    if selection == "fuchsia"
        ret := color.fuchsia
    if selection == "lime"
        ret := color.lime
    if selection == "maroon"
        ret := color.maroon
    if selection == "navy"
        ret := color.navy
    if selection == "white"
        ret := color.white
    if selection == "yellow"
        ret := color.yellow
    if selection == "olive"
        ret := color.olive
    if selection == "orange"
        ret := color.orange
    if selection == "purple"
        ret := color.purple
    if selection == "red"
        ret := color.red
    if selection == "silver"
        ret := color.silver
    if selection == "teal"
        ret := color.teal
    ret


f_set_style(selection)=>
    ret = line.style_solid
    if selection == "dotted"
        ret := line.style_dotted 
    if selection == "dashed"
        ret := line.style_dashed
    ret


f_delete(tf) =>
    if tf == 'Weekly'
        line.delete(wCloseLine)
        label.delete(wCloseLbl)
    if tf == 'Daily'
        line.delete(dCloseLine)
        label.delete(dCloseLbl)


if showWeekly
    f_delete('Weekly')
    wCloseLine := line.new(wFrom, wClose, wTo, wClose, color=f_set_color(wColor), extend=extend.right, width=wWidth, style=f_set_style(wStyle))
    wCloseLbl := label.new(f_calc_bar_time(lblOffset), wClose, xloc=xloc.bar_time, text="Weekly Close", style=label.style_none, textcolor=f_set_color(wColor))

if showDaily
    f_delete('Daily')
    dCloseLine := line.new(dFrom, dClose, dTo, dClose, color=f_set_color(dColor), extend=extend.right, width=dWidth, style=f_set_style(dStyle))
    dCloseLbl := label.new(f_calc_bar_time(lblOffset), dClose, xloc=xloc.bar_time, text="Daily Close", style=label.style_none, textcolor=f_set_color(dColor))```
 

Ваш код работает просто отлично.
Я думаю, что вы недостаточно далеко прокручиваете вправо на своем графике.
По умолчанию lblOffset установлено значение at 30 , поэтому текст будет на 30 столбцов правее.
Смотрите ниже скриншот, который был сделан из вашего кода (без изменений).
Он четко показывает текст Daily Close на синей линии.

Обновлен код для отображения меток:

 //@version=4
//5 Horizontal EMA by -=Tre$aCo7n=-
//Modified from 4 Exponential Moving Averages from @vitastrato

study(title="5 Horizontal EMA", shorttitle="5 H. EMA", overlay=true)

len1 = input(10,  minval=8, title="Length entry ema")
len2 = input(21,  minval=8, title="Length fast ema")
len3 = input(55,  minval=8, title="Length medium ema")
len4 = input(100, minval=8, title="Length slow ema")
len5 = input(200, minval=8, title="Length very slow ema")
src  = input(close, title="Source")

var bool show_hlines = input(true, "Show horizontal lines", input.bool)
var bool show_emas   = not show_hlines

var color_entryema      = color.green
var color_fastema       = color.orange
var color_mediumema     = color.red
var color_slowema       = color.white
var color_veryslowema   = color.purple

var line_entryema       = line.new(x1=na, y1=na, x2=na, y2=na, xloc=xloc.bar_time, extend=extend.right, color=show_hlines ? color_entryema    : na, style=line.style_dashed)
var line_fastema        = line.new(x1=na, y1=na, x2=na, y2=na, xloc=xloc.bar_time, extend=extend.right, color=show_hlines ? color_fastema     : na, style=line.style_dashed)
var line_mediumema      = line.new(x1=na, y1=na, x2=na, y2=na, xloc=xloc.bar_time, extend=extend.right, color=show_hlines ? color_mediumema   : na, style=line.style_dashed)
var line_slowema        = line.new(x1=na, y1=na, x2=na, y2=na, xloc=xloc.bar_time, extend=extend.right, color=show_hlines ? color_slowema     : na, style=line.style_dashed)
var line_veryslowema    = line.new(x1=na, y1=na, x2=na, y2=na, xloc=xloc.bar_time, extend=extend.right, color=show_hlines ? color_veryslowema : na, style=line.style_dashed)

var label_entryema      = label.new(x=na, y=na, text=tostring(len1), xloc=xloc.bar_time, color=show_hlines ? color_entryema    : na, textcolor=show_hlines ? color_entryema    : na, style=label.style_none)
var label_fastema       = label.new(x=na, y=na, text=tostring(len2), xloc=xloc.bar_time, color=show_hlines ? color_fastema     : na, textcolor=show_hlines ? color_fastema     : na, style=label.style_none)
var label_mediumema     = label.new(x=na, y=na, text=tostring(len3), xloc=xloc.bar_time, color=show_hlines ? color_mediumema   : na, textcolor=show_hlines ? color_mediumema   : na, style=label.style_none)
var label_slowema       = label.new(x=na, y=na, text=tostring(len4), xloc=xloc.bar_time, color=show_hlines ? color_slowema     : na, textcolor=show_hlines ? color_slowema     : na, style=label.style_none)
var label_veryslowema   = label.new(x=na, y=na, text=tostring(len5), xloc=xloc.bar_time, color=show_hlines ? color_veryslowema : na, textcolor=show_hlines ? color_veryslowema : na, style=label.style_none)

f_moveLine(_id, _x, _y) =>
    line.set_xy1(_id, _x,   _y)
    line.set_xy2(_id, _x 1, _y)

f_moveLabel(_id, _x, _y) =>
    label.set_xy(_id, _x, _y)

entryema    = ema(src, len1)
fastema     = ema(src, len2)
mediumema   = ema(src, len3)
slowema     = ema(src, len4)
veryslowema = ema(src, len5)

if (hour==0 and minute==0 and year(time)==year(timenow) and month(time)==month(timenow) and dayofmonth(time)==dayofmonth(timenow))
    f_moveLine(line_entryema,      time, entryema)
    f_moveLine(line_fastema,       time, fastema)
    f_moveLine(line_mediumema,     time, mediumema)
    f_moveLine(line_slowema,       time, slowema)
    f_moveLine(line_veryslowema,   time, veryslowema)
    
    f_moveLabel(label_entryema,    time, entryema)
    f_moveLabel(label_fastema,     time, fastema)
    f_moveLabel(label_mediumema,   time, mediumema)
    f_moveLabel(label_slowema,     time, slowema)
    f_moveLabel(label_veryslowema, time, veryslowema)
    
plot(entryema,    color=show_emas ? color_entryema    : na, linewidth=1, title="Entry EMA")
plot(fastema,     color=show_emas ? color_fastema     : na, linewidth=1, title="Fast EMA")
plot(mediumema,   color=show_emas ? color_mediumema   : na, linewidth=1, title="Medium EMA")
plot(slowema,     color=show_emas ? color_slowema     : na, linewidth=1, title="Slow EMA")
plot(veryslowema, color=show_emas ? color_veryslowema : na, linewidth=1, title="Veryslow EMA")