Using the Measure Grade & Distance app 
Measure Grade & Distance requires two points to be measured, creating a line. The name, code, grade, calculated distance, horizontal distance, and vertical distance are recorded. A line is shown in yellow with the two measured points shown as blue spheres, for the duration of the SiteVision session.
You can record points using GNSS 
or by measuring in the AR space 
.
TIP –
In the Grade & Distance Details window, you can delete a measurement; tap 
in the bottom right corner of the window.