Use Case Description: In many business scenarios, users are required to add multiple records for a specific entity within a form, such as entering multiple addresses, contacts, or line items. To streamline data entry and enhance user experience, it is often necessary to pre-populate certain fields in each new row with default values or calculated data based on business rules. 

Implementation Steps:

Step 1: Define Default Values Using a Data Transform

1. In the data class associated with your Embedded Data Property (PageList), create a new Data Transform named pyDefault
2. 
3. Within this Data Transform, specify the data elements and their default values that should be automatically populated whenever a new row is added. Configure these values according to your business requirements. For example:
   • Set a default status (e.g., "Active")
   • Populate the current date
   • Retrieve a user’s department from the parent case

Step 2: Configure the View to Use the Data Transform

1. Open the relevant View (section) where users will add embedded data.
2. Add the Embedded Data Property (PageList) to this View.
3. Click the gear icon next to the embedded list property to configure its settings.
4. Set the "Visibility condition" to use a When rule, and select the "Always" condition to ensure the add row functionality is always available.

Step 3: Define the Declare Expression to Prepopulate Data Based on Business Rules

• Create a Declare Expression for the property in the Data layer.
• Add the specific business rule for the property to dynamically prepopulate the data based on the data entry on other fields.

Step 4: Test the Functionality

• Launch the application and navigate to the section containing the Embedded Data (PageList).
• Click "Add row" to add a new record.
• Observe that the fields in the newly added row are automatically populated with the default values specified in your pyDefault Data Transform.