Within the Genero Report Writer vernacular there are two terms that sometime cause confusion, are they the same thing?, if they are different what is the difference? sometimes they are used interchangeably. Those two terms are RTL and PXML.
You click on the same fx button to enter RTL and PXML, but there are differences in what they produce, what you can use in an RTL and PXML expression, and when they are evaluated.
Read more at
https://4js.com/ask-reuben/ig-88/