When making a reservation, the search form select box for the number of persons shows options only up to 5 Adults. How can I change that?

How can I allow search for more than 5 persons? I have set different maximum occupancy depending on the accommodation type. Some accommodation types are for more than 5 persons but it is not possible to select more than 5 "Adults" or "Children" in the drop-down select of the search form. How can I change that?

There is an option in HBook > Forms > Search form where you can set the "Maximum adult number" and "Maximum children number" for the selects of the search form.