One of the hidden features of the EAValidator is copying the EA Id into the clipboard. When you double-click on a validationerror in Id of the element is copied into to clipboard.
In Enterprise Architect you can easily search for the element by creating a new search (only once) with the following query:
ea_guid AS CLASSGUID, Object_Type AS CLASSTYPE,Name AS Object, Object_Type AS [Type], Stereotype, CreatedDate, ModifiedDate
ea_guid = '<Search Term>'