We can create drill downs at each widget. The drill down has to be set in the options attribute. The drill down can contains more than one link, external resources and dashboard links.

{
  "links": [
    {
      "url": "https://wizzie.io",
      "name": "Wizzie Web",
      "type": "absolute"
    },
    {
      "url": "/dashboards/1",
      "name": "Clients detail",
      "type": "dashboard"
    }
  ]
}