Spectra Precision Survey Pro v4.5 Recon and Nomad Reference Manual - Manual (Page 131)

Survey Menu
R-123
instrument has been moved to the New Occupy Point and is aiming
toward the New Backsight Point. The New Backsight Circle angle will
then be sent to the total station so its horizontal angle will display
this value.
Backsight Setup… : accesses the Backsight Setup screen (Page R-114)
where the current backsight can be modified.
Point Exists
Survey Traverse / Sideshot Traverse or Side Shot .
When performing a traverse or side shot and the foresight point name
already exists, the Point Exists screen will open where you select how
to handle the new point.
Overwrite Existing : will overwrite the existing point with
the new coordinates.
Use Next Available : will store the coordinates using the
next available point name.
Store Additional Observation : will write an observation
record to the raw data file with the new coordinate
values without changing the existing point in the job file.
(This button is not available when shooting an existing
traverse shot.)