Walk through of incorporating guest name and ages other than primary into rental agreement

I've read through the attached - but likely because I'm so unfamiliar with OR - I can't get follow along to the instructions on how to add guest names/ages.

Wondering if anyone would be kind enough to do a little more hand holding/basic walk through as to how to set this up for direct bookings and Airbnb. On Airbnb - the guest has to put in the names (no ages) of each guest - but not sure how to get that into the RA. On the direct booking - the # of guests comes through - but there's nothing that forces them to fill in the names of each person - and not sure how to get that into the RA

https://www.ownerreservations.com/forums/requests/template-fields-for-agreement-info-guest-needs-to-add