Roll out sum on group summary rows

[supriya.khamesra]

Hi,

I am using free PQgrid and I want to show the sum of the rows to get roll out to the group summary rows. As suggested in the example on the link https://paramquery.com/pro/demos40/group_rows . I have used groupModel.summaryInTitleRow  and set its value as 'all' but not getting the sum to roll out. I am getting the sum at the end of each group. The group model I am using is the same as below.
var groupModel = {
            on: true,
            summaryInTitleRow: 'all', //to display summary in the title row.
            dataIndx: ['ShipCountry', 'ContactName'],
            title: [
                "{0} ({1})",
                "{0} - {1}"
            ]
   
 please help me in resolving the issue as it is the primary requirement.

[paramvir]

groupModel.summaryInTitleRow is a Pro only feature.

[supriya.khamesra]

To accomplish  roll out of sum to group row need to use pro version.