Feature CenterlinesKeyCreator \ Tools \ Feature \ Feature-Centerlines
Each Feature dialog box contains a Ctr Line tab that can be used to add and configure centerlines the feature. Your selections will be reflected in the Preview window.
Use the checkboxes to indicate which views to include radial centerlines in (Top, Wire 3D, Bottom, Solid).
The push buttons can be used to specify the type of radial centerline to draw. The options are:
Use the checkboxes to indicate which views to include axial centerlines in (Side Rep, Wire 3D Rep, Solid).
Choose a length for the radial and axial centerlines. You can select whether to use a percentage or an inch or millimeter measurement to describe the length of the centerlines: