Spring Boot Data + Multiple Databases

Hi, We are reaching the point of development where we are preparing to go live. We want to run our application against a specific NEO4J database, instead of the default neo4j::Default database.

I have search the Neo4j documentation, plus a whole load of Spring Boot web sites, but I can't find anywhere a specification of how we set the default database.

I was sort of looking for a tag in the application profiles like:


But either I need new glasses, or I can't find this. Any clues? Or do we just go with the flow and use the default database? Not sure how this will work if we deploy on to Neo4j AURA hosted cloud.