Spectra Precision FAST Survey Reference Manual - Manual (Page 327)

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Edit - Input-Edit GIS Data (EGIS):
This command allows you to input or edit GIS attributes associated with an entity. Select the entity from the screen or
for the case of a closed polyline, pick inside the area defined by that entity.
Only polylines (open or closed) can be selected. This command does not apply to attributes associated with points (use
List Points to edit point attributes). Attributes are associated with points, polylines and polygons (closed polylines)
either through use of feature codes or by importing shape files. If a polyline is closed, you can use the Pick option and
simply pick inside its interior. This “ROAD” description included a “SURFACE MATERIAL” attribute, which now
can be edited.