On the chance that someone is feeling generous I have the following question: I know that Gap Up is one of the pre-packaged thinkscript scan indicators. The question is: is it difficult to scan for a Gap Up happening N bars ago? I tried modifying the formula by putting in Low[6] to get the low six bars ago but thinkscript doesn't like that syntax. Is this an easy thing to do? Thanks in advance.

input price1 = low;
input percentage = 2.0;
input price2 = high;
def x = 1+percentage/100;
def term = x*price2[7];
plot scan = price1[6] >= term;