SolrCloud: is there a programmatic way to create an ensemble

[Yury Kats]

I have multiple SolrCloud instances, each running its own Zookeeper
(Solr launched with -DzkRun).

I would like to create an ensemble out of them. I know about -DzkHost
parameter, but can I achieve the same programmatically? Either with
SolrJ or REST API?

Thanks,
Yury