8. Choose Create - Class. The Create NetClass popup window will appear as shown below.
9. We want to come up with a name for the class of power traces, so let's rename the NetClass field from CLS1 to Power.
Note how the names of the nets are shown in the list.
10. At the bottom of the window, keep the checkbox selected for Create for both physical and spacing because we'll want to
add the right spacing for these nets as well, and click Ok.
11. Back in the CM Physical Nets Worksheet shown below, you can see the POWER category as a NetClass.
12. That's not the end of it though. We need to assign a trace width rule to that entire class, because right now it only has
the default rules applied to it (shown in image above).
13. To apply the rule to the entire class of power traces, let's create a Power rule (called a Constraint Set).
14. Right-click the POWER(6) cell above (the net class you just created), then in the menu, choose Create - Physical CSet.
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Part 1 of 5
