A couple years ago I created an extension to Visual Studio for previewing config transformations similar to the old config transform preview feature. We have found this tools really helpful at work for converting from config transforms to parameterization and generally to preview config parameterizations.
This week I upgraded the extension to include support for VS2017.
Here is my original blog post about the extension if you would like more information –
https://www.dotnetcatch.com/2014/09/08/parameterizationpreview-visual-studio-extension/