The Break button breaks an entity creating a gap in it.
Quick Access Panel:
Ribbon: Editor -> Instruments -> Break
Menu: Tools -> Modify -> Break
To create a gap in an entity:
1. Select the needed entity
2. Press the Break button.
3. Click to set the first and the second points of the gap.
Example - break a circle:
•press the Break button;
•select a circle:
•click to set the first break point on the circle:
•click to select the second break point on the circle:
•the result is:
Go to ABViewer