How to turn on Destination Address Affinity persistence

Yes, there is a virtual server outbound_https_forwarder which has the Default Persistence Profile defined as Custom_Dest_Persist. This profile has a parent of dest_addr (which has destination address affinity set) but also has "Mirror Persistence", "Match across services" and "Match across virtual servers" checked. The prof. svcs. eng. from F5 set all that up, so I'm not sure why he had to create a custom profile and check those options. The virtual server I set up just points to the dest_addr profile that has destination address affinity set without those other boxes checked.