If my oData includes a child (in this case state), and I want to be able to group by the state name.   Unfortunately with the code I presently have below, when grouping by state, it passes $orderby=state+asc,  this causes an error.   I would need it to pass $orderby=state/name+asc.   Is there a way to code the grid to do this?

oData & grid code below:

{

"odata.metadata": "http://localhost:63609/odata/$metadata#EscheatmentsOData",
"odata.count": "1",
"value": [
{
"state": {
"id": 1,
"abbreviation": "AL",
"escheatmentname": "STATE OF ALABAMA",
"name": "Alabama",
"territory": false,
"updateUser": "SeedData",
"updateTime": "2016-05-18T15:44:03.103"
},
"status": {
"id": 1,
"name": "NEW",
"description": "Auto-assign when property record first shows up in the R07306",
"updateUser": "SeedData",
"updateTime": "2016-05-18T15:44:09.583"
},
"address": {
"id": 1,
"firstName": "FirstNameVal",
"middleName": "MiddleNameVal",
"lastName": "LastNameVal",
"streetAddress1": "Street1Val",
"streetAddress2": "Street2val",
"streetAddress3": "street3val",
"city": "cityval",
"zip": "zipval",
"updateUser": "corp\\test",
"updateTime": "2016-05-25T00:00:00"
},
"comments": [],
"id": 1,
"year": 2016,
"cycleStartDate": "2016-01-01T00:00:00",
"cycleEndDate": "2016-12-31T00:00:00",
"accountNumber": "123456",
"accountValue": 100,
"taxId": "123456789",
"birthDate": "1920-06-20T00:00:00",
"dealerBranch": "DealerBranchValue",
"planType": "PlanTypeValue",
"socialCode": "SocialCodeValue",
"deathDate": null,
"desceased": false,
"fiduciary": false,
"regLine1": "ReqLine1Value",
"regLine2": "ReqLine2Value",
"regLine3": "ReqLine3Value",
"regLine4": "ReaLine4Value",
"regLine5": "ReqLine5Value",
"regLine6": "ReqLine6Val",
"build": "BuildVal",
"checkNumber": "CheckNumberVal",
"dollarAmount": 100,
"shareAmount": 200,
"eligibleDate": "2016-06-20T00:00:00",
"establishedDate": "2016-01-05T00:00:00",
"fundNumber": "FundNumberVal",
"lastContactDate": "2016-05-25T00:00:00",
"originalRunDate": "2016-05-25T00:00:00",
"lastRunDate": "2016-05-25T00:00:00",
"late": true,
"yearsLate": 5,
"ddLetterDate": "2016-05-01T00:00:00",
"propertyType": "1",
"rpoDate": "2016-01-01T00:00:00",
"checkDate": "2016-01-02T00:00:00",
"stateCutOffDate": "2016-01-03T00:00:00",
"stateDormancy": 0,
"stateDueDate": "2016-12-15T00:00:00",
"forceIndicator": false,
"updateUser": "corp\\test",
"updateTime": "2016-05-25T00:00:00"
}
]
}

Grid:

///*----------------- Instantiation -------------------------*/
$("#grid").igGrid({
    virtualization: false,
     dataSource: "/odata/EscheatmentsOData?$expand=state,status,address",
     primaryKey: "id",
        restSettings: {
                update: { url: "/api/Escheatmentsapi/" },
                remove: { url: "/api/Escheatmentsapi/" },
                create: { url: "/api/Escheatmentsapi/" }
        },
    autoGenerateColumns: false,
    autoGenerateLayouts: false,
    localSchemaTransform: true,
    responseDataKey: "value",
    renderCheckboxes: true,
    columns: [
        {
            headerText: "Id", key: "id", dataType: "number"
        },
        {
            headerText: "State", key: "state", dataType: "object", formatter: function (val) { return val.name; }
        },
        {
            headerText: "Year", key: "year", dataType: "number"
        },
         {
             headerText: "Fund", key: "fundNumber", dataType: "number"
         },
        {
            headerText: "Account No", key: "accountNumber", dataType: "string"
        },
        {
            headerText: "Tax Id", key: "taxId", dataType: "string"
        },
        {
            headerText: "Check No", key: "checkNumber", dataType: "number"
        },
        {
            headerText: "Description", key: "planType", dataType: "string"
        },
        {
            headerText: "Status", key: "status", dataType: "object", formatter: function (val) { return val.name; }
        },
        {
            headerText: "Value", key: "dollarAmount", dataType: "string"
        }
    ],
    width: "100%",
    features: [
        {
            name: "Paging",
            type: "remote",
            pageSize: 10,
            recordCountKey: "odata.count"
        },
        {
            name: 'GroupBy',
            columnSettings: [

            {
                columnKey: "year",
                isGroupBy: true,
                dir: "asc"
            }
            ]
        }
 
 
    ]
});