Knack Track chrome extension (announced here) now supports Knack’s classic builder, in addition to the original support for the next-gen builder.
With its new release (see this link), you can now work with either classic/next-gen builders, while the extension continues to show fields references and usage information.
Note that this chrome extension will eventually fully replace find.knack.com/definitions.
Please let me know if you have questions or comments.
Thanks
Nir