Anyone know a way to get stochrsi %D smoothing?

[notthemoma]

Does anyone know how to change the %D smoothing (not length) on the stochrsi.

Could someone write the code please? I need to change the parameters in stochrsi to this:

Stoch rsi 1

Rsi length 14
%k length 15
smoothing 3
color red
thick medium

%d
smoothing 2
color green
thickness thick

bands upper 80
lower 20
color black
thickness medium

Thanks!