I am writing to address an issue with the ajax_update(*args, **kwargs) as described in the Flask-Admin documentation. The current description does not provide clear guidance on overriding this method for instance-specific behaviors.

In practice, I attempted to modify the ajax_update to alter the editing behavior of an editable column in my list view. However, all my attempts resulted in a POST request returning a 404 error, indicating a disconnect between the documentation and practical implementation.

Could the documentation be updated to include more technical details and guidance on how to successfully override the ajax_update method for custom behaviors in list view editing? Such an update would be immensely beneficial for developers seeking to customize this aspect of Flask-Admin.

Thank you for considering this request.