This is very basic question - apologies -
But how do I use the "highest bar" function in the condition builder? I would like to say something like if the highest bar (high of that bar) over the last 10 days is outside of an upper bollinger band then do not enter this trade.

So the condition to be met should just be:
highest bar (high, ideally) < upper bollinger band

Is that correct? It's not working for me for some reason.
Thanks in advance.

You need to identify the bar index where the highest bar occured, then identify the high and bollinger value at that bar. I am pretty sure that you can't do this in the wizard, will probably have to manually edit.

use

High[HighestBar(High, int period)]

Bollinger(double numStdDev, int period).Upper[HighestBar(High, int period)]

for example

if(High[HighestBar(High, int period)] < Bollinger(double numStdDev, int period).Upper[HighestBar(High, int period)])
{do this super secret magical thing that is going to make me rich and everyone else will still be broke}

Great thanks, I think it is working - but I was hoping for something that could look at a range of bars - for example "is there a bar that is outside of the bollinger within the last 20 periods?" rather than just "is the 10th bar back outside of the bollinger?"
I could definitely just repeat the formula, but I would imagine there is a better way... ? Any ideas?
Thanks again.