This feature is not available in GuideSIGN.
Allows reference lines and offset reference geometry to be added, renamed, or deleted. Additionally, horizontal clearances from the reference line and offset reference geometry can be specified and edited. A terrain can also be specified for use in the display of 3D signs.
To use the Reference Line Manager tool, click Reference Line Manager on the GuideSIGN Plus toolbar or ribbon.
Select a terrain in the Terrain list (surface in AutoCAD or terrain in MicroStation)