[Aditservice]

To check the values in specific fields that only appear when a certain value is selected from a dropdown list; you have to script that specifically using a If condition Then action(s) End If branch within your test script.

If valueToSelect = "MyDesiredValue1" Then 
         Place the test script actions for these specific fields here
End If
If valueToSelect = "MyDesiredValue2" Then
         Place the test script actions for other specific fields that appear now.
End If