What type of button is used to access inputs globally in the console?

The correct answer is related to the functionality of accessing inputs globally within the console's operations. The INPUT FLIP button is specifically designed to toggle or switch the route of inputs across various channels simultaneously, allowing for efficient control and management of audio signals. This feature is crucial in complex mixing scenarios where a user may need to have multiple channels receiving input from the same source or streamline the workflow in a live sound environment.

While other buttons and controls perform different functions—such as controlling overall output levels or specific channels—none provide the same capability to globally manage input signal paths across the console. Understanding how the INPUT FLIP feature works is important for maximizing the capabilities of audio mixing consoles, especially in larger setups or during live performances.