The Collision List dialog box is displayed as soon as you select Operation | Graphic Display Window | Collision Detection menu option to start collision detection. This is helpful when collision detection needs to be stopped, identified collisions can be reviewed up to that point.
Collision List dialog box
This dialog box displays a list of collisions for the measurement routine. The Graphic Display window also highlights those path lines in red. If the Edit window is in Command mode, you can click on an item on the Collision List dialog box to locate the command in the Edit window where collision was detected. You can then modify the measurement routine to fix the collision problem.
If you want to remove one or more items from the Collision List dialog box, select the item or items, and click the Clear button. You may find this useful if you want to remove an item you've already corrected or if you want to focus on a subset of a large list of detected collisions.