# Working with the Sources Tab

External signals used as tasks for tightenings are configured in the Sources menu. Sources are accessories or similar connected to a virtual station. Two types of source tasks are available:

- Source Tightening task

- Source Batch task

Source Tightening is used to select a single tightening program.

Source Batch is used to select a batch sequence, a series of tightening programs.

For more information about selection of tasks, see Assigning a Task to a Virtual Station.

In this Section

- Source Tightening
- Source Batch Sequence