You can remove all entities in a freehand-drawn path with the trimming brush on the screen. The brush comes in 3 different sizes.
1. Go to Trimming tool section and click the Brush trimming button.
2. Choose a Brush size. The default size is set to the smallest one.
3. Draw a path by painting over the scan data area you wish to remove.
4. Click the right mouse button to delete the selected areas.