Order Holds in SOE

We want to use both a Credit Limit check and an Aging check, but I only see "Customer Credit Check" on the Order Holds tab of P4210 Processing Options.  If I want to also do an aging check, does that need to be set up in the processing options of P4210?

I set up C2 aging check in Order Hold Constants, according to document 628808.1, but the document doesn't go into much detail regarding the aging check and I'm not having much success.

I have a customer with 96% of their receivables in Period 5.  I set Age From = 5 and Allowable % = 10%.  I key a sales order and it does not go on C2 hold.