Thank you for your patience.
The option you are looking for is only possible in Elastic License 2.0, and is not available for ODFE.
As the message says, with Maps, you can add multiple layers and indexes, plot individual documents, symbolize features from data values, add heat maps, grids and clusters, and much more. To get Maps, upgrade to the default distribution of Elasticsearch and Kibana.
It also informs that from version 8.0 "Coordinate Map" will be migrated to Maps, a package usable only with licensed Elastic.
Hope this helps,