.. _extending_basics:

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The basics
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PSN is intended to be extended by modules. PSN comes with built-in modules which reside in the plugin's subdirectory "modules". Custom modules can be uploaded via the plugin's **Module Manager** in the Service section. The Module Manager scans for custom modules in a subdirectory of the **upload path** called **"post-status-notifier"**. If you upload a valid custom module, the Module Manager will automatically copy it to this destination and list it as an installed module.

.. image:: _static/module_manager.jpg
    :height: 394px
    :width: 599px
    :scale: 100%
    :alt: Module Manager