George helped me out with this one.

{
  "apiVersion": "batch/v1",
  "kind": "Job",
  "metadata": {
    "labels": {}
  },
  "spec": {
    "template": {
      "spec": {
        "parallelism": 1,
        "completions": 1,
        "restartPolicy": "Never",
        "containers": [
          {
            "name": "prefect-job",
            "env": []
          }
        ]
      }
    }
  }
}

paste this in job then for Command type

python

and click enter type

-m

and click enter type

prefect.engine

and click enter Should look like below

And you might have to put empty jsons '{}' in the other one's. Not sure