Which platforms use both Key and Button Sequence Trigger?

The Convertible and Detachable Platform is the correct answer because these types of devices are designed to work in multiple modes—such as laptop and tablet—and often incorporate various features that enhance user interaction. The Key Sequence Trigger and Button Sequence Trigger functionalities are particularly useful in such versatile devices, as they allow users to perform different commands or actions efficiently depending on the mode. For instance, when transitioning from laptop to tablet mode, users may rely on button sequences for quick access to certain features or settings.

This adaptability is critical in ensuring seamless usability across different contexts, making Convertible and Detachable Platforms exceptional examples of where both Key and Button Sequence Triggers are applicable. Other platforms have specific limitations in offering these types of triggers due to their design and intended usage, which is why they don't fit the criteria as well.