Most action steps have at least one property that can be bound to a column from your data source. To bind a test step property to a project data source:
1. Click the step in the Test Steps pane.
2. Click next to the (Bindings) Property.
3. Click the drop-down menu next to the test step property.
4. Select a column name from the Value drop-down and click Set button. This list will not include columns from the parent data source of a test as step.
If you've Set an Extracted Variable in Code or wish to access the data source of a parent test, type the variable name in the text box (without the $ notation), click the brackets and Set button: