You can modify the specified range of available lenses.
From the MAIN MENU, click PROGRAM AND SURGEON SETUP
Click SURGEON LENS SETUP tab
Select your surgeon.
Select lens in ACTIVE LENS LIST. If the lens you want isn't there you'll need to add it to your list.
Click VIEW/EDIT LENS PROPERTIES IN DATABASE
Click SPECIFY RANGE
This will affect the lens suggested on the IOL Calc page. So in this screenshot below lenses of diopters 23, 24, 25, 26 are the lenses that are available near the desired 24.17.