highcharts - RallyChart Pie - Is there a way to consolidate data labels? -

i'm wondering if there way consolidate data labels one. here's simple example context: if had pie chart labels "apple", "banana", "grapefruit", "broccoli", "lettuce"-- there way me group data associated "broccoli" , "lettuce" "vegetables" label? don't need reference "broccoli" , "lettuce" afterwards, need "vegetables" label aggregates them 1 label.

any , great.

thanks!

here example of how combine defects "open" , "closed" categories based on state attribute has 4 allowedvalues:

ext.define("mydefectcalculator", {              extend: "rally.data.lookback.calculator.timeseriescalculator",             getmetrics: function () {                 var metrics = [                    {                         field: "state",                         as: "open",                         display: "column",                         f: "filteredcount",                         filterfield: "state",                         filtervalues: ["submitted","open"]                    },                     {                         field: "state",                         as: "closed",                         display: "column",                         f: "filteredcount",                         filterfield: "state",                         filtervalues: ["fixed","closed"]                     }                 ];                   return metrics;             }