Since version 1.4.6, theme has supported the feature to help you quick set up the page layout for Whitelable:
Step 1. In admin dashboard, select Page > Add New to create a new page layout for Whitelable.
Step 2: In the page edit, select TravelPayout Search Result for Template and Publish/Update your page.
Step 3: To apply this page layout for Search function, go to Traveler Settings > API Configure > switch to TravelPayouts tab and select the page name that created at Whitelabel Page Search.