# 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: used to select a single tightening program.

- Source Batch task: used to select a batch sequence, that is, a series of tightening programs.

In this Section

- Source Tightening
- Source Batch