C# Copy File With Build

I’m wondering if it’s possible to copy a file from my custom plugin directory, but I need to specify it to be copied to a specific directory when the user goes to package their project. I currently can copy out files like this:

RuntimeDependencies.Add(new RuntimeDependency(FilePathHere));

But I need to tell the build tool where to actually copy that file within the packaged application. (ie. Not where it originates from based on the project root)

I see that RuntimeDependency can be constructed with two parameters, but this results in some really strange behavior when packaging the project.

I’m hoping an Engine dev can help out and let me know if what I’m trying to do is possible.
Another possible solution would be to have access to the full path of where the packaged application is going. Is that exposed anywhere in the build tool? If so I could just copy the file using some custom C# code.

Thanks