To Attach a Script to a Task

In the Animation Producer dialog Schedule Panel, right-click the task to which you want to attach a script.
From the pop-up menu, choose Attach Script.
The Attach Script dialog opens.
Do one of the following:

In the scripts list box, select the required script file and Accept.

or
To attach a script from another design file, select a file from the File field and Accept.

The script is attached to the task as displayed in the tree pane.