Clean up a design the way you would on paper. Pick the eraser, drag it across your shapes, and whatever it passes over is gone. No point editing, no helper shapes, no combining.

Each stroke is one step, so Undo puts back everything it removed.
The eraser treats a shape the way it will be carved.
Locked shapes, drill holes, and designs made by apps like Monogram and V-Carve Inlay are left alone.
The size starts at your bit's diameter, so a stroke removes about what one pass of the bit would carve. Slide it anywhere from 1/32" to 2", or type a size in inches or millimeters. The size stays the same when you zoom in or out.
Give it a try on your next project, and let us know what you make with it.