I am new to trading actions. I am free user of Trading View. There is indicator limit to use for free users. So I want to try combining LuxAlgo – Nadaraya-Watson “Smoothers” and “Envelope” Indicators.

float y2s = na
float y1s = na
float y1_ds = na
line l = na
label lb = na

if barstate.islast and repaint
    //Compute and set NWE point 
    for i = 0 to math.min(499,n - 1)
        sum = 0.
        sumw = 0.
        //Compute weighted mean 
        for j = 0 to math.min(499,n - 1)
            w = gauss(i - j, h)
            sum += src[j] * w
            sumw += w

        y2s := sum / sumw
        d = y2s - y1s
        
        //Set coordinate line
        l := array.get(ln,i)
        line.set_xy1(l,n-i+1,y1s)
        line.set_xy2(l,n-i,y2s)
        line.set_color(l,y2s > y1s ? dnCss : upCss)
        line.set_width(l,2)
        
        if d * y1_ds < 0
            label.new(n-i+1, src[i], y1_ds < 0 ? '▲' : '▼'
              , color = color(na)
              , style = y1_ds < 0 ? label.style_label_up : label.style_label_down
              , textcolor = y1_ds < 0 ? upCss : dnCss
              , textalign = text.align_center)

        y1s := y2s
        y1_ds := d


//
float y2 = na
float y1 = na

nwe = array.new<float>(0)
if barstate.islast and repaint
    sae = 0.
    //Compute and set NWE point 
    for i = 0 to math.min(499,n - 1)
        sum = 0.
        sumw = 0.
        //Compute weighted mean 
        for j = 0 to math.min(499,n - 1)
            w = gauss(i - j, h)
            sum += src[j] * w
            sumw += w

        y2 := sum / sumw
        sae += math.abs(src[i] - y2)
        nwe.push(y2)
    
    sae := sae / math.min(499,n - 1) * mult
    for i = 0 to math.min(499,n - 1)
        if i%2
            line.new(n-i+1, y1 + sae, n-i, nwe.get(i) + sae, color = upCss)
            line.new(n-i+1, y1 - sae, n-i, nwe.get(i) - sae, color = dnCss)
        
        if src[i] > nwe.get(i) + sae and src[i+1] < nwe.get(i) + sae
            label.new(n-i, src[i], '▼', color = color(na), style = label.style_label_down, textcolor = dnCss, textalign = text.align_center)
        if src[i] < nwe.get(i) - sae and src[i+1] > nwe.get(i) - sae
            label.new(n-i, src[i], '▲', color = color(na), style = label.style_label_up, textcolor = upCss, textalign = text.align_center)
        
        y1 := nwe.get(i)

I tried to combine them but somehow I always missing “Smoothers” line, (I guess y1s, that added “s” to the end because y1 is “Envelope”s line probably.)

enter image description here

Is there anyone willing to combine them and send the code for me or maybe tell what am I missing?