Yes Sir, I have tried Meta stock but I think we can't plot percentage box size & reversals in it. Also the bands and averages etc. I found same problem with some other I saw. I use IRIS. Not so familiar with excel VBA, but will try that.
One good software i have come across is bull's eye broker. You can define the box size and number of reversal box size. Data can be imported from your existing TA software like Amibroker etc. You can get the trial version at www.pointandfigure.com/