Break
Breaks the selected object between two points
Button: 
Command name: _Break
With _Break you can insert a gap between two defined points on an object, dividing it into two objects. If the points are outside an object, they are automatically applied to the object.
- Select the object to be broken.
- Select the first break point. The break is inserted to the left of the first point.
- Select the second break point.
The selected object is broken between the two selected points.