If I correctly understood the question you need to insert some test data in the database? If that is the case, you will have to do this manually or use some third party tool - there are lots of programs on the internet that do exactly this thing. If you want to find a tool just type "generate test data in database" in your favorite search provider and choose between one of the first results. Open Access ORM does not provide functionality like the requested one out of the box.
Please if the described scenario is not exactly what you want to achieve get back to us with more details about what needs to be done.
OpenAccess ORM Q2 2013 brings you a more powerful code generation and a unique Bulk Operations support with LINQ syntax. Check out the list of new functionality and improvements shipped with this release.