I have e-mailed the developer about this, but have gotten no response. After adding an external method in the ZMI, I get errors when attempting to revisit the method. This makes it impossible to run external methods via the 'Test' tab. Zope 2.6.2/Python 2.1.3 Zope 2.7.0/Python 2.3.2 Traceback (innermost last): Module ZPublisher.Publish, line 98, in publish Module ZPublisher.mapply, line 88, in mapply Module ZPublisher.Publish, line 39, in call_object Module Shared.DC.Scripts.Bindings, line 252, in __call__ Module Shared.DC.Scripts.Bindings, line 283, in _bindAndExec Module App.special_dtml, line 174, in _exec Module Shared.DC.Scripts.Bindings, line 266, in __render_with_namespace__ Module Shared.DC.Scripts.Bindings, line 283, in _bindAndExec Module App.special_dtml, line 174, in _exec Module DocumentTemplate.DT_With, line 76, in render Module DocumentTemplate.DT_Util, line 201, in eval - __traceback_info__: this Module <string>, line 0, in ? NameError: name 'externalEditLink_' is not defined