You can use the context menu to shade the burn area of electrodes. This gives flexibility for machining within PowerMill because you can define a template to machine the different areas appropriately.
To display shading of the burn area:
The default shading for the faces is as follows:
The settings for burn area shading are stored in:
C:\Program Files\Autodesk\PowerShapexxxxx\file\electrode\electrode_burn_region_shading.con