You can use cue channels for sending cue mixes, also known as headphone mixes, to performers in the studio during recording.
You can create up to 4 cue channels in mono or stereo for 4 discrete cue mixes. Cue channels have talkback and click functions. They allow you to monitor the main mix, external inputs, or a dedicated cue mix.
Example
If you have 2 available headphone amplifiers for performers, you can create 1 cue channel for each cue mix and name them according to their function: vocalist mix, bass player mix, etc.