Found on the Inception tab:
Normally, you should allow the system to classify the lease. However, in some circumstances, you may want to explicitly classify the lease one way or the other. If you specify the classification, How Classified is set to User; otherwise, it is System.
To change a user-classified lease to system-classified, set the Classification box to To Be Classified. When you save the lease, EZLease will determine the proper classification of the lease, and change How Classified to System.