# Adjusting metadata and functionality extensions

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Metadata and functionality extension settings can only be adjusted by an Administrator.
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Metadata and functionality extensions can be used to provide additional metadata types, and functionality to the Aristotle Metadata Registry, respectively.

### How to adjust metadata extensions

1. Select 'Aristotle Cloud Dashboard' from the dashboard side panel.

<figure><img src="/files/tJ6rLnw9RzQ0hOKw9nTu" alt=""><figcaption></figcaption></figure>

2. Select 'View registry settings'.

<figure><img src="/files/3rUdnvCqBVjFiBtHtIPP" alt=""><figcaption></figcaption></figure>

3. From the 'Metadata extensions' menu, the following metadata extensions can be enabled or disabled:

   * 'Aristotle ISO 11179': edition 2 backwards compatibility: Adds the 'Aristotle Backwards Compatibility' category to the registry's list of creatable metadata item types. This category includes classification schemes
   * 'Aristotle Ontology Tools': Adds the 'Aristotle Ontology Tools' category to the registry's list of creatable metadata item types. This category includes:
     * Object class specialisations
     * Property groups
   * 'Aristotle Dataset Extensions': Adds the 'Aristotle Dataset Registration Extensions' category to the registry's list of creatable metadata item types. This category includes:
     * Data catalogues
     * Data sets
     * Data set specilaisations
     * Distributions
   * 'Aristotle Relations and Links': Adds the 'Aristotle Concept Links and Relations' category to the registry's list of creatable metadata item types. This category includes relations
   * 'Mallard Question Registry': Adds the 'Mallard Questionnaire Registry' category to the registry's list of creatable metadata item types. This category includes questions
   * 'Comet Indicator Registry': Adds the 'Comet Indicatory Registry' category to the registry's list of creatable metadata item types. This category includes:
     * Frameworks
     * Indicators
     * Indicator sets
     * Outcome areas
     * Quality statements
   * 'Glossary': Adds the 'Aristotle Glossary Extension' category to the registry's list of creatable metadata item types. This category includes glossary items.
   * 'Classifications': Adds the 'Classifications Management' category to the registry's list of creatable metadata item types. This category includes:
     * Classifications
     * Correspondence tables.

   <figure><img src="/files/TjzgbPdnMZ42bEKSflPA" alt=""><figcaption></figcaption></figure>

**Notes:**

* These checkboxes only enable or disable the ability to **view and create** the associated metadata items in the registry. If a metadata item type is disabled, pre-created metadata items of that type will be hidden, not deleted.
* The list of currently enabled item types and item type categories can be easily viewed in the Aristotle Bulk Creator's metadata type dropdown (below). The bulk creator can be accessed via the 'Create New Metadata' page.

<figure><img src="/files/L8YRPydg9reOcit1A49f" alt=""><figcaption></figcaption></figure>

4. From the 'Functionality extensions' menu, the following functionality extensions can be enabled or disabled:

* The following screenshot displays a portion of the 'Concept browser' page (accessed via 'Browse' in the registry header) **with** non-mandatory metadata types (all Metadata extensions enabled):

<figure><img src="/files/lzNFa5Ulvn0W0htPirfH" alt=""><figcaption></figcaption></figure>

* The following screenshot displays the 'Concept browser' page (accessed via 'Browse' in the registry header) **without** non-mandatory metadata types (all Metadata extensions enabled):

<figure><img src="/files/Rwe1Ty7rnUktUpHY8nFF" alt=""><figcaption></figcaption></figure>

### How to adjust functionality extensions

1. From the Functionality extensions menu, the following functionality extensions can be enabled or disabled:

* 'Enable Slots': Enables or disables the 'Slots' tab in the metadata item editor (below)

**Note:** If a custom field has [been configured](/registry-configuration/adding-custom-fields.md) for a metadata item type, its 'Slots' tab will appear regardless of this setting's configuration

* 'Enable Identifiers': Enables or disables the 'Identifiers' tab in the metadata item editor (below).

<figure><img src="/files/gfDTiQzPbw7tVwhfU1w7" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/BCfgchTgoR6yNTPTiYzD" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/g0NXKHmWYA5bQNXmLMbG" alt=""><figcaption></figcaption></figure>


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