===========================
Using the Locking extension
===========================

Multi-user capabilities are engaged in AEN when multiple users work in the
same notebook file.

The Locking extension allows you to lock a notebook to prevent multiple team
members from making changes at the same time. Notebooks are automatically
locked when you open them.

If team members open a notebook and make changes while it is locked, their save
capability is disabled, and they cannot overwrite the notebook.

To override the lock, they must actively take control of the locked file by
clicking the Lock icon in the Notebook menu bar:

.. figure:: /img/aen-user-extensions_locker.png

   ..

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NOTE: This is a soft locking model. Team members can choose to override your
lock to save their work. If you give team members write access to your files,
confirm that they understand that they should never unlock your file unless
they are making meaningful, non-destructive team contributions.
