I want to make an indicator for Pro real time based on range of the London session the New York session and the Tokyo session from the opening and closes of their trading days and then I want to look at the previous 14 of those trading ranges so we look back at the London open and close 14 times in the past then give me the average range and then display it on the chart on over a daily 4 hour or one hour chart in a box in over the left or right hand corner showing the figures not only do I want the indicator to do that I also wanted to show me the range of the days so the last 14 Mondays average Range and then display that as a figure on the chart as well as the rest of the days of the week from Monday to Friday I want to be able to change the. I’ve looked back of those ranges from 14 to 20 to let’s say eight whatever I want to put in

I have had a try code with  AI help lots of errors

// === INPUT PARAMETERS === Range SD
rangeLength = 14       // Lookback period (e.g., 14, 20, or 8 days)
showTopLeft = 1        // 1 = top-left corner, 0 = top-right

// === INITIALIZATION ===
once dayRangeMonday[]  = 0
once dayRangeTuesday[] = 0
once dayRangeWednesday[] = 0
once dayRangeThursday[] = 0
once dayRangeFriday[] = 0

once tyoRanges[] = 0
once ldnRanges[] = 0
once nycRanges[] = 0

// === TIME FILTERS FOR SESSIONS (GMT) ===
// Tokyo: 00:00 - 09:00 GMT
inTokyoSession = (time >= 000000 and time < 090000)
// London: 07:00 - 16:00 GMT
inLondonSession = (time >= 070000 and time < 160000)
// New York: 12:00 - 21:00 GMT
inNewYorkSession = (time >= 120000 and time < 210000)

// === SESSION RANGE CALCULATION ===
if barindex > rangeLength * 24 then
    // Store daily high/low per session
    if inTokyoSession then
        tyoHigh = max(tyoHigh, high)
        tyoLow = min(tyoLow, low)
    endif
    if inLondonSession then
        ldnHigh = max(ldnHigh, high)
        ldnLow = min(ldnLow, low)
    endif
    if inNewYorkSession then
        nycHigh = max(nycHigh, high)
        nycLow = min(nycLow, low)
    endif

    // End of day (at 23:00 GMT) – commit range and reset
    if time = 230000 then
        // Session Ranges
        if tyoHigh <> 0 and tyoLow <> 0 then
            tyoRanges.append(tyoHigh - tyoLow)
        endif
        if ldnHigh <> 0 and ldnLow <> 0 then
            ldnRanges.append(ldnHigh - ldnLow)
        endif
        if nycHigh <> 0 and nycLow <> 0 then
            nycRanges.append(nycHigh - nycLow)
        endif

        // Weekday Ranges
        dayRange = high - low
        select dayofweek
            case 1
                dayRangeMonday.append(dayRange)
            case 2
                dayRangeTuesday.append(dayRange)
            case 3
                dayRangeWednesday.append(dayRange)
            case 4
                dayRangeThursday.append(dayRange)
            case 5
                dayRangeFriday.append(dayRange)
        endselect

        // Reset session high/low
        tyoHigh = 0
        tyoLow = 999999
        ldnHigh = 0
        ldnLow = 999999
        nycHigh = 0
        nycLow = 999999
    endif
endif

// === AVERAGE RANGE CALCULATION FUNCTION ===
def calcAverage(array, length)
    sum = 0
    count = min(length, array.size)
    for i = 0 to count - 1 do
        sum = sum + array[i]
    next
    if count > 0 then
        result = sum / count
    else
        result = 0
    endif
    return result
enddef

// === COMPUTE AVERAGES ===
avgTyo = calcAverage(tyoRanges, rangeLength)
avgLdn = calcAverage(ldnRanges, rangeLength)
avgNyc = calcAverage(nycRanges, rangeLength)

avgMon = calcAverage(dayRangeMonday, rangeLength)
avgTue = calcAverage(dayRangeTuesday, rangeLength)
avgWed = calcAverage(dayRangeWednesday, rangeLength)
avgThu = calcAverage(dayRangeThursday, rangeLength)
avgFri = calcAverage(dayRangeFriday, rangeLength)

// === DISPLAY TEXT OUTPUT ===
xOffset = 10
yOffset = 20
if showTopLeft then
    posX = barindex - xOffset
else
    posX = barindex + xOffset
endif

drawtext("TYO R " + round(avgTyo), posX, high + yOffset, dialog, "Arial", 12, standard, showTopLeft)
drawtext("LND R " + round(avgLdn), posX, high + yOffset - 10, dialog, "Arial", 12, standard, showTopLeft)
drawtext("NYC R " + round(avgNyc), posX, high + yOffset - 20, dialog, "Arial", 12, standard, showTopLeft)

drawtext("M   " + round(avgMon), posX, high + yOffset - 40, dialog, "Arial", 12, standard, showTopLeft)
drawtext("T   " + round(avgTue), posX, high + yOffset - 50, dialog, "Arial", 12, standard, showTopLeft)
drawtext("W   " + round(avgWed), posX, high + yOffset - 60, dialog, "Arial", 12, standard, showTopLeft)
drawtext("T   " + round(avgThu), posX, high + yOffset - 70, dialog, "Arial", 12, standard, showTopLeft)
drawtext("F   " + round(avgFri), posX, high + yOffset - 80, dialog, "Arial", 12, standard, showTopLeft)