The uncomfortable issue with this approach is that you have mantain two different applications (B4R+B4A, B4J, or third-party apps) that have to fit to each other.
Accordingly, after a while one might have forgotten which data format is required or how the data are handled in the separate graphing app.
It is a pain to find the matching versions if one of the two apps had been modified a couple of times...
During the years I have not found a solution to this problem.
So, the wish persists........