IQ Auditing

Is anyone aware of custom / third party software which will conduct detailed auditing of the use / non-use of tables, columns etc in IQ at the DB level?

The use of the stored procs, ie sp_iqtableuse column use etc are possibly useful at a connection / workload level but have their limits.

dbtrans also limited and raises concerns re overhead on a fully loaded DB.

Would appreciate anyones thoughts or suggestions.

Thanks