Update: finally I managed to add the synonyms to my schema DEV_* by using context menu option "New synonym" on the EPM TCUR* tables in _SYS_BIC schema, and also changed the client 001 and this DEV_* schema on the view and on the currency calculation so now the Analytic view AN_PURCHASE_ORDERS at least works and I can display the data with a select statement in the SQL console 
