Script to Create Maintenance Windows in Altiris CMS

Hello, anybody knows how to create Maintenance Windows in Altiris CMS using a script ?

( Before to make this question I have been searching in ASDK docs, internet, but i didn´t found it. )

I need to resolve this issue in my work:  I have a list of maintenance_windows and machines from other system, and we want to create in altiris programmatically.

Thanks for your attention.

Fernando