Edit a Notch
Click the lines, which intersection point you add the notch, and enter the dimension of the notch.
- Select Drawing | Line Tools |  Stretch > Stretch > Edit Notch. Edit Notch.
- Select the lines of the notch.
- Edit the notch data in the dialog box.  Notch Data Notch Data
- Select OK.

 Select a notch line and the
 Select a notch line and the  Edit Notch function from the context-sensitive menu.
Edit Notch function from the context-sensitive menu.
Note: 
  - A notch dimension used as a constraint can also be edited by double-clicking the dimension and entering a new dimension value in the Text Edit field of the dialog box. Note that the Drives Geometry dimension property is selected in the dialog box. 
