| additionalDataOptions |[microsoft.graph.security.additionalDataOptions](../resources/security-ediscoveryaddtoreviewsetoperation.md#additionaldataoptions-values)|The options to add items to the review set. The possible values are: `allVersions`, `linkedFiles`, `unknownFutureValue`, `advancedIndexing`, `listAttachments`, `htmlTranscripts`, `messageConversationExpansion`, `locationsWithoutHits`, `allItemsInFolder`. Use the `Prefer: include-unknown-enum-members` request header to get the following values from this [evolvable enum](/graph/best-practices-concept#handling-future-members-in-evolvable-enumerations): `advancedIndexing`, `listAttachments`, `htmlTranscripts`, `messageConversationExpansion`, `locationsWithoutHits`, `allItemsInFolder`. The `locationsWithoutHits` and `advancedIndexing` value are only considered if **itemsToIncude** is set to `partiallyIndexed`.|
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