Chain Trimming
Use the option Chain if you are trimming a series of elements. After you click the second element, Creo Elements/Direct Drafting trims the line(s) and tells you to click the next element:
1. Click Trim/Expand in Modify.
2. Click Chain in Trim/Expand.
3. Click point 1.
4. Click point 2.
5. Click points 3, 4, 5, 6.
Using the Chain Option
 | You cannot trim elements such as closed splines, circles, and closed polygons because split points are not defined. |