Collatoral charges or secured debts are only supported on HELOC or other mortages.

Here is how to add a Secured HELOC.
  1. Tap on "Edit"
  2. Scroll to "Debts"
  3. Add New Debt
  4. Choose "HELOC" as your Debt Type
  5. Turn the switch "Secured by the current property" to ON
Make sure to only turn the switch ON if the debt is secured by the subject property.