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When I select three products, a box with a gift image will appear
https://shop.trybello.com/try-bello-hair-helper-order-form-a13
Hey @US_A — welcome to the community! 
Thanks for sharing the idea — that kind of interactive feature (showing a gift box when 3 products are selected) is a really cool touch and definitely doable with a bit of custom code.
To help you get this set up exactly the way you want, I recommend reaching out directly to our support team. From there, one of our developers can assist you in implementing this feature on your Funnelish page.
You can contact support through our live chat, and just mention that you want to implement a “gift box on product selection” like the Bello Hair Helper page. We’ll guide you step-by-step from there!
Looking forward to seeing what you build! 
— Anwer
Funnelish Team