Discoverer and Database Synonyms

We create business areas in our development database and then move them to the production database. I have been told by the development team that Discoverer does not use Oracle Database Synonyms and that they must identify tables as schema_name.table_name. We are using Discoverer 10g. Is it true that synonyms cannot be used?
Thanks

I have not used synonyms in our system, but they can be accessed by creating custom folders in admin. In general, Custom folders are created to build complex query using advanced SQL which cannot be handled by discoverer end user editions. Custom folders can use tables, views, or synonyms.

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