About post build commands..

I need to copy a file to my resource folder after a build.
but I want to create a subdirectory in the resource folder for it.
How do I do that?
Right now the post build copy command specifies just the source folder the destination pull down is “resources folder”

Strange. Don’t you have a ‘Subdirectory’ -field above the pulldown?

Put the original file in a subdirectory.
Then in your copy build step, add the subdirectory instead of the single file, with Resources as its destination.