How do I access MarketingEngagement objects?

Hi there,

We were wondering whether it is possible to access MarketingEngagement objects as they are described here: MarketingEngagement - GraphQL Admin
Reason for this would be to fetch the underlying data that is (presumably) used to generate the table viewable under https://admin.shopify.com/store/STORE_NAME/marketing/reports/campaigns. As the web session in the browser still uses the deprecated shopifyqlQuery method to fill the table, I suspect that the newer API just does not have support for this yet.
So my question is: Does somebody know a way to get to these objects or whether support for it is planned in the future?

Thanks!