The linear units of measurement are unavailable with offset tracing in ArcGIS Pro

Description

In ArcGIS Pro, when the ‘Trace with offset’ check box is checked in the Trace Options dialog box, the Units drop-down menu displays angular units, such as Decimal Degrees (DD), Degrees Minutes Seconds (DMS), and Right Ascension (RA) as options, instead of linear units, such as mile (mi), feet (ft), US feet (ftUS), yard (yd), kilometer (km), and meter (m).

Cause

The map in the ArcGIS Pro project uses the geographic coordinate system. A geographic coordinate system records locations in angular units. Refer to ArcGIS Pro: Coordinate systems, map projections, and transformations for more information.

Solution or Workaround

Change the map's coordinate system to a projected one. Refer to ArcGIS Pro: Set the coordinate system for instructions. In this example, the coordinate system is changed to 'NAD 1983 Wisconsin TM (Meters)'.

The image below shows the menu displaying linear unit options after changing the map's coordinate system to a projected one.