How can I change the titles or headers for cross sells?

You can change the titles or headings for cross sells by going into Settings in our app:

To change Product Cross Sell headers, change the values under Product Detail Page Settings -> Section Headers 

To change Cart Cross Sell headers, change the values under Cart/Basket Page Settings -> Section Headers

To change the headers for the Upsell Popup, go to Settings > Quickview & Popup Settings -> Add to Cart Pop-up -> Settings -> Title