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Hello @big-notebook-65054, you are right that you have to use the

EnvironmentAllSetting[]

field. Every setting is of structure:

{
   namespace: "<namespace>",
   name: "<property name>",
   value: "property value>"
}

You can find all the possible namespaces, property names, as well as property values if these are limited, in the AWS docs: https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/command-options-general.html If you click on one of the namespaces in this doc, you are presented with a table. Each row in the table represents a possible `name`+`value` pair you can add as a settings object, e.g.:

{
   namespace: "aws:elb:listener",
   name: "ListenerProtocol",
   value: "TCP"
}

Source: https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/command-options-general.html#command-options-general-elblistener

Thanks @limited-rainbow-51650! This is super helpful.