Dear Achim,
To address your question, I believe you want to use one computer's configuration on another. It is correct that for DAQmx you can use the Import and Export functionality, but for Traditional DAQ you must copy the niconfig.daq file from the first computer to the target.
There are some complications that arise when doing such an operation, and these are discussed on one of our KnowledgeBases that I have linked below:
http://digital.ni.com/public.nsf/websearch/EA00227D63B72A6F8625698F006F6094?OpenDocument
Let me know if you have any further questions or if this does not resolve your issue.
Thanks and have a great day!
Chad AE
Applications Engineer - National Instruments