Sadly, I don't see anyway immediately in the web service to do what you're looking to accomplish.
I would certainly recommend adding a Feature Request to add this as an option to the Tickets configuration: Web Help Desk Feature Requests
Sadly, I don't see anyway immediately in the web service to do what you're looking to accomplish.
I would certainly recommend adding a Feature Request to add this as an option to the Tickets configuration: Web Help Desk Feature Requests