I tried created a new import configuration by referring: https://documentation.riada.se/insight/latest/insight-manager-s-guide/import-and-synchronization/create-your-own-import-type.

Was unable to find if the newly created import configuration can be exported to a json or any other format and then imported to a newer instance of insight rather than creating the configuration from the scratch on a new instance. Also when we have multiple instances, creating manually is not feasible