When you do "Post Process", you will see the toolpath created for this operation.
Click "OK" to add the operation.
Set all the parameters to those that you want.
But, you can reselect the points, at any time, by typing in the ID numbers separated by spaces, if you know them, or pick the points from the Graphics window, by clicking the "Pick" button.
If there were some points selected before the drilling operation was created, then you will see their ID numbers in the "points" box.
You will then see the drilling dialog.
The drilling operation will appear in the Objects window.