Thank you for your post.
At this time, using FileMaker Go, you can only export a Container field to the FileMaker Go directory. The script step would be:
Export Field Contents [ <Container field> ; <filename> ]
I recommend you enter this suggestion into our Feature Requests web form at:
The entries into this web form are put into a database file that is hosted by Development and Product Management where they are then discussed and considered for future releases. Although I could copy your post and paste it into the web form, there are some additional questions asked that only you can answer.