Properties Common in the Page Editor - Studio Pro 9 Guide | Mendix Documentation
Currently there is a small subset of Predefined Validations for Input Widgets, and we do a lot with Expressions.
We should have a choice to Capture those Expressions somehow:
Bonus: If Studio Pro Realizes that a Specific Nanoflow could be used as a Predefined Validation it should Offer it in the List of Context Independent Validations.
This could make a Big Step from Low Code to No Code in UI Design as most of the Expressions are in the Domain of Low Code still as of Now