dhtmlxgrid - adding subrow on onRowSelect

I am using dhtmlx grid in angular 2 . I have a requirement to add some buttons in a row when the row is selected. I have seen dhtmlx grid subrow example it is taking one additional column in grid with sub-row type and subrow content is displayed on expanding the sub-row type cell.

In my requirement I dont want to add additional column in the grid with expandable option. Instead i would need to add sub row content on selecting any row in the grid dynamically in typescript code.

could you please give me some sample typescript code where grid sub row content can be added dynamically on onRowSelect event. thanks.

Unfortunately such feature is not supported in dhtmlxGrid.