AFAIK, the workaround is to trick FSB into thinking the csv it is using is the downloaded data by replacing it with your own renko based CSV.

but i found it to be quite unreliable when used with FSB to do EA backtesting. much of the testing are time based while Renko data isn't. I personally haven't found a good way to do Renko backtesting properly.

https://www.forexfactory.com/showthread.php?t=572375

You may encounter a lot of problems attempting to use Renko in FSBPro due to the way the bars are constructed. You will have to check very carefully.

It's been awhile and I forget the details but, basically, you need to create a *.csv file with Renko bars.  The *.csv file would be your data source and you would treat it like any other data source.  One problem that I recall is I had to name the *.csv using a common symbol.  Since I don't usually trade EURGBP then I named it EURGBP60.csv and this allowed it to be recognized by FSBPro.

As an aside -- have you used Renko charts?  Do you have any pros or cons?

I am using the same Renko indicator that a friend has used successfully.  I've installed it on EURUSD M1 and open offline charts.  I can see new, 10 pip bricks being created every couple of hours.  My strategies were generated, optimized and back tested using Renko data and have excellent stats and many trades (when back testing).  But no trades in a live account.

Are there any settings you are aware of that would prevent an FSB-generated strategy from opening trades on a Renko chart?

Thanks...