It can be accessed under the ElasticSuite menu > System > Indices.

Parameter	Description
Index Title	The name of the index in Elasticsearch
Index Alias	The alias of the index. Depends on the content type of indexed data.
Number of documents	The number of documents in the index.
Size	Size of the index.
Index Status	Status of the index : <ul><li>External : An index that is not related to this Magento/Elasticsuite instance. Perhaps you are having other Magento instance or applications using the Elasticsearch server.</li><li> Live : This index is actually used by the search engine when browsing your website.</li><li> Rebuilding : This index is actually rebuilt by the Magento indexing process.</li><li> Ghost : The rebuilding of this index has started more than 24 hours ago. It’s likely it did not succeed. In any case, it’s not used by the website and can be safely deleted.</li></ul>
Action	Actions you can make on the index : <ul><li>View Mapping : View the index mapping.</li><li> View Settings : View the settings of this index.</li><li> Delete : Only available for ghost indices, you can use this to get rid of them.</li></ul>