Modify theme to integrate 3rd party API Travelo theme-Affiliate API integrations for different travel agencies

Hi, I have installed theme as demo and all i want is to use Affiliate API integrations for different travel agencies like [login to view URL], Hotels-combined.. [login to view URL],[login to view URL],[login to view URL] .. etc? But unfortunately There’s no option to use affiliate API on this Travelo theme. You will need to modify theme to integrate 3rd party API ( Cars, Cruises, Flights,Hotels etc.) Also you will show me how to how to add all affiliates to the website. here site link and theme link also fix demo resolution so it exactly perform like demo. [login to view URL] [login to view URL] Thanks