I have not heard of a change to that; it is best to just have multiple

A new option now MAY be to see what comes from the HPE merger/acquisition
by Micro Focus. Some things we know are coming include functionality from
ArcSight; if they had a way to query multiple tables at the same time
across databases then that may eventually make it into Sentinel.

Otherwise you could potentially use the REST API to setup multiple event
sources quickly so you are not needing to do so manually. That may not
save you much time in the long run, but it may provide a lot of confidence
in consistency across many things because they are created via code.

Good luck.

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