如何让构建在Flex中自动更新Web服务引用？

From within FlexBuilder3, I can go to "Data/Manage Web Services..." select a web service, and click "Update" to ensure that my code and the server are in sync. How do I automate this so that each time I build, the automatically generated web service code is regenerated?From within FlexBuilder3, I can go to "Data/Man