By default Multi Language support
Currently, if you want to build a multi language form, you must replace labels by "Calculate fields", then use a lookup function to get the correct value into a SharePoint Translation List.
This method is only acceptable if you have a small quantity of field on your form, due each calculate field means a request to the list, so 200 labels means 200 request to the list --> PERFORMANCE HUGE ISSUE.
It would be great Nintex to support by default better multi language option integrated, like the "resource file" parameter in advance settings, allowing a single query to a file (XML?) containing all literals and translations.
Thanks for your suggestion.
We have been exploring this as an idea and something we would like to do in the future for Universal Forms.
Our current priority is to replace the existing Responsive Forms designer and have the same functionality migrated. Once this is done, we may revisit this idea.
If we have movement on this, I will update this idea.