In FeatureWIRE, you can graphically remove a slug after the 3D simulation is finished. The region to remove must be totally separated from the rest of the part.
To remove the slugs:
Perform a 3D solid toolpath simulation.
Toggle the viewing mode in the viewing flyout menu to the up position.
Click on the slug in the graphics window. The slug is removed.
You can click as many slugs as you wish to remove.
Click the Stop button in the simulation toolbar to clear the screen.