https://www.shardbox.org/search/?q=%23routing
"#routing" Search on Shardbox
routing search
https://www.elastic.co/docs/explore-analyze/cross-project-search/cross-project-search-project-routing
Using project routing to limit cross-project search scope | Elastic Docs
Learn how to use project routing to limit cross-project search (CPS) queries to specific projects based on tag values.
cross searchusingprojectroutinglimit