Running JMP17.
I've been looking into code folding but it does not seem to work as expected. When I use the Expr() function I see the section collapse with the icon to expand. When I use Try() however the code is collapsed but there's no way to expand it again. Am I not understanding something? Also, below link speaks of a custom list that can be defined in jmpKeywords.jsl, but it would be nice to see an actual example of that.
https://www.jmp.com/support/help/en/15.1/#page/jmp/add-code-folding-markers.shtml#
Expr()

Try() -> no expansion possible, also not through right mouse click - > expand all

My settings
