Config Transformation on NLog does not work

Question

I have a web project (ASP.NET MVC 4 project) that has a number of configurations stored in Web.Config and in NLog.config files.

I have

Answer 1

Update - Adding a "key" attribute to the config and transformation files along with "Transform" and "Locator" attributes to the lines that change in the transformation file works in a standalone NLog.config file as follows:

Transform file: