Once you're ready to test your OLAP schema on a wider scale, use the Publish button above the Model pane in the Model perspective, and use it to connect to your test or development BA Server.
You can continue to refine your schema if you like, but it must be republished each time you want to redeploy it.
Note: Agile BI is for prototyping only. It is extremely useful for developing OLAP schemas that meet the needs of business analytics developers, business users, and database administrators. However, it should not be used for production. Rather, once your Agile BI schema has been refined, you will have to either hand-edit it in Schema Workbench to optimize it for performance, or completely re-implement the entire model with Schema Workbench.