Developers will need to add custom HTML attributes to buttons on the Mendix and provide access to these HTML attributes and event objects when nanoflow is added to the 'onclick' events of the buttons. This approach allows for more flexible and dynamic use of buttons. Adding nanoflow to the 'onclick' event and accessing html attributes and event objects with this nanoflow provides greater control over the content of the development and offers significant advantages for creating dynamic, interactive user interfaces. Integration of these features makes the development process more efficient and improves the user experience, making applications more flexible and user-oriented.