alligator indicator

I have to admit that I don't know a lot about script, but the Ichimoku indicator includes two lines are offset forward. I notice in the script that they achieve this using:

nssh := input("First/Second (Senkou) shift",26,1);
standardline := (highest(H,ns) + lowest(L,ns))/2;
turningline := (highest(H,nt) + lowest(L,nt))/2;
span1 := (standardline + turningline)/2;
span2 := (highest(H,nssp) + lowest(L,nssp))/2;
[name=First span; color=green; hozshift="nssh";]
span1;

If you Insert the Ichimoku indicator, then view its Properties and look at the last tab "Formula", this might help?

Cheers

Robert B