Stores Folders - Are there any methods to push files into folders?

Hi,

I am creating scripts that load files into  'Stores >Files' where I've created two folders ASIS and TOBE (so I can later compare actual against expected).

However, I cannot find a way of loading the files (through javascript) into the correct folder [ I could find no No Push & Pop methods, as with log messages, ie  PushLogFolder() PopLogFolder() ]

 It is no biggie, (more of a 'nice to have', as it would better organise the files), but if there is a way to do it (without having to manually move them every-time they are loaded), it would be helpful to know?

Many Thanks

Mike