How do I allow/disallow same day returns?

Step 1: Select "Properties" from the top menu bar

 Step 2: Select "Properties" from the top sub-menu

Step 3: Select "Rental Rates" from the side-bar menu

 Step 4: Select the "Advanced Options" button from the top right of page

 Step 5: Go to the Same Day Turns box and move slider to indicate your preference

Step 6: Click on the Save Changes button at bottom of page