Transport Request - saving objects in workbench request

Output of my Report is ALV. In that I have One button in the application toolbar and I have checkbox as a column to select the displayed entries. If I select that button the selected entry( in my case 'Role') has to be saved under a customizing request'.

In my case it is saving the object under 'WORKBENCH Request'.

Is there any Function module to do this .

I have used 'TR_REQUEST_CHOICE' fn module to get that create request pop up screen and for appending entries I have used 'TRINT_APPEND_TO_COMM_ARRAYS'.(IT is saving the object under WORKBENCH ReQUEST, But I need it in CUSTOMIZING REQUEST)