The Test Data column serves the purpose of storing the raw data that will be used for testing purposes. Other testers can refer to the Test Data in the Execution process. You can add Test Data while adding a Test Step to the Test Case.

Steps to Add Parameters and Parameter Values:

1. Click on drop down

2. Click on Add column to add parameter

3. Click on Add rows to enter the parameter value

Steps to add the Test Steps data: 

1. Goto Test Case details page > Switch to Steps Tab.

2. Scroll down to the step details. 

3. Start adding the necessary data in the fields specified.