Hi,
As Classic UI is going to deprecate from 2018, its mandatory for every component developer to create Touch UI based Multi-field dialog in AEM 6.x versions.
Learn How to Develop Multi-Field dialog in Touch UI in AEM 6.2 - Adobe Experience Manager Help | Creating an AEM 6.2 HTML Template Language component that uses a Mul...
Note: If you do not see any values that are not holding in the dialog for whatever reason, make sure you try to install the package(in the beginning of the article) on the Fresh AEM instance and it works!! I have tested it and it works!!!
~Ratna.
