Thanks Mariano. Your post put me on the right track. It's a pretty clever way that works.
It's just that it's always a bit of a problem with ideas and implementation. After it worked, I wasn't satisfied with the overall result. The lines in my B4XTable are just too narrow for such gimmicks. It gets very confusing because the FontAwesome icons are just too hard to distinguish even at the maximum possible font size within the line.
Sure, you can make the lines bigger and adjust everything. But then it's at the expense of the clarity of the entire B4XTable.
Ambition and reality... this is the first time I've had this problem.
Nevertheless, thank you very much for your contribution, I think it will also help others on the right track.
Cheers