The catalog preferences allow the behavior of the catalog to be set.

- Save Temporary Data Types - When checked temporary feature types that have been defined will be saved between sessions. The data is not saved, however, only the feature type definition and the entry in the catalog.
- Example: If a user creates a new FeatureType via the Layer > Create menu item a layer is typically added to the open map and an entry is added to the catalog. If this preference is not checked the entry will be removed from the catalog on shutdown.
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