You can execute following operations:
Select default value:
1. Press DEFAULT button ; NEW data field will be automatically updated with default
value.
2. Press SAVE button and confirm; OLD data field will be updated.
Change actual value:
1. Insert changed value in NEW data field
2. Press SAVE button and confirm; in case of good result, OLD data field is updated.
Otherwise an error is signaled and NEW data field initial value is restored.
Discard changes:
1. Press CANCEL button; NEW data field will be restored with initial values.
2. Press SAVE button and confirm; OLD data field are restored with initial values.
