In TOTAL Sketch, you can easily erase a small segment of a line, symbol, or label using the built‑in eraser tool. The eraser tools works like digital "white out" allowing you to eliminate a small segment of a line in order to place a door in the white space, for example. To use TOTAL Sketch's eraser:
If you need to place several copies of the eraser throughout your sketch, enable Stamp Mode, before you select and place the eraser. Because Stamp Mode doesn't require you to reselect the eraser, you can keep repeatedly click different areas of the sketch to place additional copies of the eraser.