AFR table modification/add fields

Is it not possible to modify tables or add tables within the AFR database?
For example, in Epicor the GL table [GLJrnDtl] has fields like InvoiceNum,Character01,Character02....etc.  However, when this table is replicated over to the AFR database, these fields are excluded.
I have attempted to modify them with the AFR database, the report designer allows me to add the fields without error, but when I preview the report it throws multiple AFR BO errors.
I also have a need to add in additional tables, but don't see anyway for AFR to recognize them.  This is AFR 9.05.702 (the latest release).