There is no mechanism to export and import the configuration from a VNA plug-in provided at this time.
You can use the VNA admin console
http://vna-host:8080/vna/
to get the existing configuration, and then copy it manually to the new environment.
1. Get the engine id using /v1/admin/engines
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Now using the get /v1/admin/engines/{engineid}/config get the configuration of your running plug-in:
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Do not include the quotes in the id.
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and here is your configuration:
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Then you can use this information to populate the new plug-in.