Set HDD S.M.A.R.T. info poll period

Just open the 'Options' tab and change it in the 'S.M.A.R.T. poll period' boxes. Enter time in the format - hours in the first box, minutes in the second.

If you use individual options for each drive, you need to select each drive in the left pane of the 'Options' tab and set the poll period individually for each drive.