3. Add your VBA code to the two existing sub routines that have been started in Module1 already within the workbook. Add your code to the sub routine named EstSingle() that will run when the user presses the Run Single Button. Add your code to the sub routine named EstBatch() that will run when the user presses the Run Batch Button. Connect the appropriate subroutine to the respective buttons, so that the correct sub routine will run when the button is pushed