In order to migrate elements between servers, I would use the Export option by selecting ‘**Export environments specific properties separately**’ check box to capture the environment details in a separate ‘.properties’ file and then I will modify the '.properties' file configuration values to point to target environment. Then, while importing in the target environment, I use both ‘.vql’ and ‘.properties’ file which is exported to have the elements migrated successfully.
You can use the Import/Export options which is available under the ‘File’ menu of the Virtual DataPort Administration tool.
You can also refer to section [Exporting and Importing the Server Metadata](https://community.denodo.com/docs/html/browse/6.0/vdp/administration/exporting_and_importing_the_server_metadata/exporting_and_importing_the_server_metadata#exporting-and-importing-the-server-metadata) of the Virtual DataPort Administration Guide to know more information
Hope this helps!!