Hi! Sorry for not announcing this change on Monday. nodeapi op 'form' is no more. Use hook_form_alter instead. This lets you not just add to the node form but change at will. See the core modules for examples. The conversation process is the following: let's suppose we have foo.module , and it compiles its nodeapi form in _foo_form which takes one argument, $node. and the last command is return $form (core actually had such functions). Then we can rename _foo_form to foo_form_alter and wrap the code as follows: function foo_form_alter($form_id, &$form) { if (isset($form['type']) && $form['type']['#value'] .'_node_form' == $form_id) { $node = $form['#node']; // _form_form code follows: $form['foo']['myfield'] = array(...); // the final return is not needed because $form is a reference. } } I added this to the handbook, too. Regards NK