JSON property value code completition

Hi.

I write JSON schema for my JSON object and use "JSON Schema version 7" mapping.
For example schema code:

{
  "type": "object",
  "properties": {
    "source": {
	  "type": "string"
    },
    "target": {
	  "type": "string"
    },
    "distance": {
	  "type": "number"
    }
  },
  "required": ["source", "target", "distance"]
}

When write "required" section for properties, IDEA suggest code completition for array items. mysubwaycard

Can I get the same behavior for other JSON or it works only for this case?