NLog.config Transformation - asp.net

Question

I have an NLog.config file that I want transformed before publishing my site. Similar to how web.config is transformed. How do I accomplish this? I couldn't find any solid resources on how to do this.
I tried adding a transform to the csproj
<Target Name="BeforeBuild" Condition="exists('NLog.$(Configuration).config')">
<Message Text="Tranforming NLog..."/>
<TransformXml Source="NLog.config" Transform="NLog.$(Configuration).config" Destination="$(OutputPath)\NLog.config" />
</Target>
Also added the NLog to csproj:
<Content Include="NLog.config">
<SubType>Designer</SubType>
</Content>
<None Include="NLog.aws-prod.config">
<DependentUpon>NLog.config</DependentUpon>
</None>
<None Include="NLog.aws-test.config">
<DependentUpon>NLog.config</DependentUpon>
</None>
but this doesn't copy the transformed NLog.config to the package directory (or when deploying to AWS). The original NLog.config is copied and a copy in the /bin directory as well.

Answer 1

SlowCheetah seems to do what I want. I've tried it and I've made changes to my csproj to add:
<TransformOnBuild>true</TransformOnBuild>
and
<IsTransformFile>True</IsTransformFile>
so the final change looks like this:
<Content Include="NLog.config">
<TransformOnBuild>true</TransformOnBuild>
<SubType>Designer</SubType>
</Content>
<None Include="NLog.aws-prod.config">
<DependentUpon>NLog.config</DependentUpon>
<IsTransformFile>True</IsTransformFile>
<SubType>Designer</SubType>
</None>
<None Include="NLog.aws-test.config">
<DependentUpon>NLog.config</DependentUpon>
<IsTransformFile>True</IsTransformFile>
</None>
That's it and NLog.config is transformed!! This target below wasn't needed:
<Target Name="BeforeBuild" Condition="exists('NLog.$(Configuration).config')">
<Message Text="Tranforming NLog..."/>
<TransformXml Source="NLog.config" Transform="NLog.$(Configuration).config" Destination="$(OutputPath)\NLog.config" />
</Target>