how to copy root fields in Jolt transform?

[l vic]

Hi,
I want to "flatten" the following object:
{
    "id": 0,
    "name": "Root",
     "mylist": [{
      "id": 10,
      "info": "2am-3am"
    },
    {
        "id": 11,
        "info": "3AM-4AM"
    },
    {
        "id": 12,
"info": "4am-5am"
    }]
}
I figured how to "flatten" array, but "root" values are gone in transformed
output:
{
   "mylist-0-id":10,
   " mylist-0-info":"2am-3am",
....
}
How can I retain "root" fields so that transformed output would like like
one below?
{
     "id": 0,
    "name": "Root",
     "mylist-0-id":10,
   " mylist-0-info":"2am-3am",
....
}