A great feature in webtools lets you fire off your services individually and give them parameters of your own choosing.
go to webtools --> schedule job --> fill in the name of your service (as defined in one of the xml files in the serviceDef directory of your application)
the application will then ask you for the parameters that are defined as attributes in the service definition. The job I scheduled is defined in groups.xml and calls three services that all have attributes defined. When I run this job thru the webtools "schedule job" tool, it asks me for all the parameters for all three services.
