To Create a Break in a Witness Line
1. On the Annotate tab, click 
Break. You are prompted to select the line to break.
Break. You are prompted to select the line to break.2. Select the line. The BREAK TYPE menu manager opens.
3. Check Parametric or Simple. A parametric break prompts you to choose a witness line or snap line to break around. You are also prompted for a break size. If you move the line you selected, the break moves with it.
A simple break lets you insert a break with one click on the line to be broken. You can adjust its size, but it is not associated with any other entity.
4. If you are inserting a parametric break, select the intersecting line. Select a break size to complete the break. You can select another witness line to break, or middle click to exit the command.
If you are inserting a simple break, click the point on the witness line to create the break. Use the line "handles" to size the break.
 | Break is not supported for the leader of a diameter dimension applied to an arc or circle. It is also not supported for the extension arc of a radial dimension, which appears when the leader is dragged to point at a part of the circle without arc geometry. |