IWR Execution API
You can use the classic Workflow Assistant (AssistantApp.exe) tool create workflows. It produces old style XWF workflow files. With this tool, you can work the typical OmniPage Workflows way.
An XWF file can be converted to regular WorkflowXML using the XWFtoXML.exe tool:
In this tool, CSDK settings can be changed by specifying a regular CSDK sts file in /s parameter.