Howto define tooltips data

[Fab]

Hello,

congratulations for KendoUI, it's a very powerful library.
I'm using KendoUI Chart and I'd like to pass a custom Array to the tooltip so that every tooltip is different.
the model I use is

var data = {

    "Title": "Title of chart",

    "Series": [

        {

            "Name": "2015",

            "Values": [1.00, 0, 0, 2.00]

        },

        {

            "Name": "2016",

            "Values": [1.30, 0.5, 0.6, 2.50]

        }

    ],

    "XAxis":

        {

            "Values": ["20 févr.", "21 févr.", "22 févr.", "23 févr."]

        }

};

I'd like to add a new array to each Series, but I don't know of to reference it in the tooltip declaration ?
 tooltip: {
               ....
            }

Is it possible to do what I want ?
Thanks