Roles permissions/privileges

i need to define a user role with the ability to only access security dashboard in kibana to see alerts but not to see rules or other things.
i have tried the below permissions, but i can't see the security UI board.

PUT /_security/role/testrole
{
  "cluster": [],
  "indices": [
    {
      "names": [
        ".alerts-security.alerts-default"
      ],
      "privileges": [
        "read",
        "view_index_metadata"
      ],
      "allow_restricted_indices": false
    },
    {
      "names": [
        ".alerts-security.alerts-tw-*"
      ],
      "privileges": [
        "read",
        "view_index_metadata"
      ],
      "allow_restricted_indices": false
    }
  ],
  "applications": [
    {
      "application": "kibana-.kibana",
      "privileges": [
        "feature_security.read",
        "feature_security.alerts.read"
      ],
      "resources": [
        "space:tw"
      ]
    }
  ],
  "run_as": [],
  "metadata": {},
  "transient_metadata": {
    "enabled": true
  }
}

would appreciate some pointers.

Hi,

according the role definition, users with this role can only access the Security app in the tw space.

Regards