3. Click Layout Setup 
in the layout bar.
1. Create the script that you want a script trigger to run.
2. In Layout mode, select a layout.
3. Click Layout Setup in the layout bar.
4. In the Layout Setup dialog box, click the Script Triggers tab and double-click the event that you want to run the script.
5. In the Specify Script dialog box, choose the script.
6. (Optional) To specify a script parameter, type the text you want. Or, click Edit and use the Specify Calculation dialog box to build a more complex parameter, then click OK.
7. Click OK to close the Specify Script dialog box.
8. In the Layout Setup dialog box, select modes for the script trigger.
9. Click OK.
A badge 
appears in the lower-right corner of a layout on which you set a layout script trigger. If you don't see the badge, choose View menu > Show > Script Triggers. In the Manage Layouts dialog box, you see 
next to the name of a layout for which a layout script trigger is set.
Script triggers set for one layout do not apply to other layouts. To include a script trigger on multiple layouts, repeat these steps on each layout.