When entering 529 College Savings Plans, enter them as an asset for the child, not the parent.
While the parent is really the Participant and the child is the Beneficiary, 529 plans don't count very much against the child for financial purposes. It really is "expended money" in terms of the parents' net worth. Therefore, it shouldn't appear in the parents' Client record and net worth.
Also, you can see all of the child's assets in the child's Client record, because they may have UTMA accounts and savings accounts in their own name as well.