Ical Mail Alarm

Hello all,
I try to generate a mail alarm by applescript. With this code:

make new mail alarm at end of item i of theEvents with properties {trigger interval:-10}

The mails are sent successfully to the address defined in “home” of addressbook. But, I need to send messages to my “work” address defined in addressbook. How (where) it’s possible to define this “property”?

thanks in advance,

Pablo Reyes