The set eye-scene tool is a new feature in SpectraPLOT for 3D plots which allows users to easily change the view of a 3D plot.
The first six options (+Z, -Z, +X, -X, +Y, -Y) set the viewing pos (eye) on the axis location selected, and sets the focus (scene) at the centroid of the 3D plot
The final option "Custom" allows the user to manually set these two parameters using the new Set Eye-Scene View dialogue:
In this dialogue spherical coordinates are only availible when each axis (x, y, z) have the same units.