Universal Audio Arrow Manual page 123

Monitor Level Indicator
In addition to indicating the relative signal level of the monitor outputs, the state of other
functions is indicated by the color of the ring around the monitor level control:
Green – The main monitor outputs are active with variable level control (normal)
Red – The main monitor outputs are muted
Blinking – The monitor DIM and/or MONO functions are active
Monitor level indications (from left to right): Normal, Mute, and DIM/MONO
Monitor Dot
When the Monitor Level function is active on Arrow's hardware (when its
white MONITOR indicator is lit), a green dot is visible in Console adjacent
to the MONITOR text label, as circled in red at right.
The dot provides a visual indication that the MONITOR level adjust
function is active on the Arrow hardware. When the dot is not visible,
adjusting Arrow's hardware level knob will not adjust the monitor level;
instead, it adjusts the headphone output volume.
Sessions Switch
The Sessions switch, located below the Monitor Level knob, is used to
access the Sessions Manager Popover (single-click) or the Sessions Menu
(right-click), where Console configuration preset files are managed. For
complete details about these features, see Console Sessions.
Arrow Manual 123 Console Reference