When your Savings are matured after saving period, you can choose to automatically create a new Savings from the matured amount. This is called Automatic Rollover or Autoroll of your Savings. It allows you to earn compounded interest on your Savings without having to create new Savings manually.
If you choose to turn this feature ON, when the Savings are matured, new Savings are created automatically from the matured amount (original amount + interest earned), with new interest rates from previous day at settlement time. For Structured Saving, the new strike price is set on the same day at settlement.
When the Automatic Rollover feature is turned ON, it will keep creating new Savings automatically until you turn it OFF, or until the Saving is converted to the Underlying Token in the case of Structured Savings (as a result of token price reaching strike price).
To turn Automatic Rollover ON or OFF when creating new Savings, you can click on the "Automatic Rollover ON" or "Automatic Rollover OFF" button at the Step 3 screen of New Saving popup menu.
To turn Automatic Rollover ON or OFF for already created and active Savings before its maturity, you can click on the little square check box on your Savings. If the check box is checked, it means the Automatic Rollover feature is ON for that Saving.