Hi,

The current behavior allows adding of additional content, but the checkbox is always rendered inside. The behavior should be similar to the Grid as when the checkbox column is used with a cell template it doesn't render the checkbox inside the column. Example in Grid component:

https://stackblitz.com/edit/angular-44syd7?file=src%2Fapp%2Fapp.component.ts

<kendo-grid-checkbox-column>
    <ng-template kendoGridCellTemplate let-dataItem let-rowIndex="rowIndex">
        My content
    </ng-template>
</kendo-grid-checkbox-column>

Thank you for your consideration.