External Method - Properties: Manage the properties of an external method. Description View and manage the properties of an External Method. Controls 'ID' -- Specifies the id of the external method. 'Title' -- Allows you to specify the title of the external method. 'Function name' -- Allows you to specify the name of the function (method) to use for the external method. 'Python module file' -- Allows you to specify the module in which the function is located. The Python module may be located in the Zope 'Extensions' directory, or in a 'Extensions' directory in a product directory. Product directories are located in 'lib/python/Products'. If the Python module is in a product directory this should be indicated in the name of the module which should be the name of the product followed by a dot followed by the name of the Python module file.