Which function allows global access to any fader input?

The function that allows global access to any fader input is commonly referred to as INPUT FLIP. This function enables users to quickly access and control the various input channels through the fader interface. When INPUT FLIP is activated, it can change the assignments of the faders so that they correspond with different signal sources or inputs, providing a flexible and efficient way to manage audio levels across multiple channels.

This functionality is essential in larger mixing scenarios where different inputs need to be accessed rapidly. It contributes significantly to the overall workflow by enabling sound engineers to adjust levels without having to navigate through multiple menus or screens, which can interrupt the mixing process.

In contrast, other options like INPUT ENABLE typically focus on activating or deactivating specific channels for usage, while GLOBAL SETTING usually refers to overarching configurations that affect the entire audio console rather than individual inputs. FADE CONTROL might be associated with managing fade times or transitions rather than giving global access to input faders. Thus, INPUT FLIP stands out as the most appropriate choice for achieving global control over fader inputs.