Spectra Precision FAST Survey Reference Manual - Manual (Page 282)

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 Design Offset:
Any offset can be entered, even if it is not a “break point” on the template. For example, an offset
of Left 5 (-5) or Right 7.23 could be entered. For every design offset point selected, the elevation is calculated and
presented. You can select the offset point from the offset list or literally pick it on the screen. The touchscreen is
active in the graphic, so you can select the -12 (EP) just by picking it. Picking on the graphic screen will take you
to the “Offset List” screen for verification, where you can confirm your pick by pressing Enter or selecting another
offset.
 Stk Off(H):
Horizontal offset from the design offset. If you enter an stake offset of 2 and the design offset point
was at 12, then the stake would go in at offset 14 off of CL, but the cut/fill would refer to the elevation at the design
offset location of 12. The stake offset and Off. to CL inter-react. A stake offset entry of 15 with a design offset of
12 left calculates to a setback of 3. If you click the "Stake Off" button, you can choose from a variety of methods to
create an offset point, including extend current slope, apply next slope, vertical offset, or user-defined slope.
Your offset is then computed and shown graphically: