Hi Nirbhay,

Thank you for the provided feedback.

We will track the customer demand for this enhancement and consider implementing it in the future, based on the interest. 

In the meantime, the developer can use the kendoGridGroupHeaderTemplate directive and control the selected items with selectedKeys property of the SelectionDirective. Here is an example:

Here is an example:

https://stackblitz.com/edit/angular-doutx8?file=src%2Fapp%2Fapp.component.ts,src%2Fapp%2Fapp.module.ts

In this case, the selection is entirely left in the hands of the developer. The Grid itself emits the corresponding events which help in creating the necessary logic.

Regards,
Martin Bechev
Progress Telerik