Hello,
Nothing has changed to my knowledge, if the file is "official", I mean if it is in the list of files in the dictionary, it will be copied in the sub-directory. If it is not "official", you need to open and close it yourself and in this case starting the address with ../myfile (..\myfile in Windows...) so that you go backwards from the working directory to the place where your file is. Maybe you wrote only ./myfile ?
Regards,
Jean-Michel Hervouet