The Session Properties window
The Session Properties window

Session properties control aspects of the workflow or configuration that pertain to the current session only; these settings are initially set from the template used to create the session. They can be found in Session > Properties, and are stored in the session file.

Preferences are grouped by category:

Timecode

Sync

Fades

Media

Change how sound is stored on disk. These options do not change how sound is handled internally.

Locations

These options add file locations that will be searched to find the audio and midi files used by the session. This is useful when the files have been imported into the session but not copied into the session.

Filenames

This tab is used to change how Ardour names recorded regions.

Monitoring

Provides options affecting monitoring.

Meterbridge

This tab changes what controls are displayed in the Meterbridge that is available in the Window > Meterbridge menu.

Misc

This tab has several things that don't fit on the other tabs.