Hi,
Yes, we can use GCEventAddCmd.bat to create\publish Service,CI and events to SOI. The batch program GCEventAddCmd.bat wraps a web services client that can publish services, CIs, and events from the Command Prompt window using USM properties. The batch program is located in the root directory of the CA SOI installation. You will find sample input files (.xml) in the SOI install folder i.e., \SOI.
Hope this helps
Brahma