Defines what the measured span is rounded to when displayed on the span & versine annotation. This value is shown in the 'Span round' box in the 'Settings' window, and can be edited on a per structure basis.
A number that has a value of 0 or greater, expressed in metres.
Default Setting: 1.0m
Changing properties: If you wish to change the option of this property, your Project Settings Administrator must request a project settings change.