Q002: Do you want to delete the currently selected field ?

You will see this question when you attempt to delete a field in List Fields.

If you confirm the deletion, a new change log request will be created. This means that you still can regret the delete-action by simply de-selecting the change log entry before saving the changes.

Note that List Fields will delete the field in all the editable documents shown in List Fields. You must have author access for the documents in order to delete fields.