Use the scripts in the linked file to grant access to Code Tester from a specific schema, and to create private synonyms on Code Tester objects in that schema.
These scripts avoid the need to create public synonyms, while still allowing you to work with a single, shared Code Tester repository.
qu_grant_execute.sql – connect into Code Tester schema and run script, passing the "target" schema as the parameter to the script.
qu_private_synonyms.sql – connect into "target" schema and run the script, and run script, passing the Code Tester schema as the parameter to the script.
A future release will incorporate these scripts into the tool itself.