You can activate or deactivate a subJob directly connected to the selected component. You can also activate or deactivate a single component as well as all the subJobs linked to a Start component. The Start component is the trigger of the Job. It has a green background.
When a component or a subJob is deactivated, you are not able to create or modify links from or to it. Moreover, at runtime, no code is generated for the deactivated component or subJob.