For SMA default script, you can change the displacement and the length of the indicator.

plot SMA = Average(price[-displace], length);

How would I add a code displacement and length to lower down the upperband or is it a fixed variable?

plot VWAP = price;

plot UpperBand = price + numDevUp * deviation;

plot LowerBand = price + numDevDn * deviation;

I tried this, but it's giving me an error. Displace works if I do, input displace = 0; but not with, input length = 0;

plot VWAP = price;

plot UpperBand = ((price + numDevUp * deviation[-displace], length));

plot LowerBand = price + numDevDn * deviation;

Actually, to make it simpler, I want the factors and the functions the same. I don't know how to explain this in code, but in math, x^2 is on the origin of the graph, but when you add (x^2 - 2) it shifts downwards 2 levels.