Model-Based Definition > Model-Based Definition > Creating Various Annotation Types > Dimension Properties > Working with Witness Lines > About Modifying Witness Lines
  
About Modifying Witness Lines
Witness lines are lines that indicate the start and end of a dimension. You can modify the witness lines of valid 3D dimensions as follows:
Erase witness lines
Restore erased witness lines
Insert jogs in witness lines
Remove jogs from witness lines
Insert breaks in witness lines
Remove breaks from witness lines
Clip witness lines
Align ends of witness lines
Skew witness lines