+lib/RT/CustomField.pm #CheckMandatoryFields
+lib/RT/CustomField_Overlay.pm #customfield date patch
+lib/RT/Interface/Web.pm #customfield date patch
+lib/RT/Action.pm #create ticket on custom field change
+lib/RT/Condition.pm #create ticket on custom field change
+lib/RT/Scrip_Overlay.pm #create ticket on custom field change
+lib/RT/Action/CreateTickets.pm #create ticket on custom field change
+lib/RT/Condition/CustomFieldChange.pm #create ticket on custom field change