The Group Stays Trip Builder search settings are in Conversion Kit > Trip Builder.
The pairing radius sets how far apart paired homes may be. When no results fit the current radius, the radius widens automatically.
You can hide the ‘How far apart?’ field from guests, and you can hide the destination field.
The banner minimum party size sets the party size that triggers the Group Stays banner on your search page.
You can also require guests to provide an email address before they can see their trip link.