XPath allows the use of comments ( https://www.w3.org/TR/xpath20/#comments , not sure about the versioning) but this does not seem to work in the modeler.
It would be great if we could use comments in the XPath constraints.
I fully support the idea. It should be minimal work for Mendix with high value for the developers.
I also need comments in “expressions”
bump this idea. In my experience, any app besides a simple POC has complex XPath constraints. Being able to document these would be great for my own use (if I wrote the xpath) or for other developers on my team.