Sticky "Book an Appointment" Button on Scroll

I would like to request the addition of a sticky “Book an Appointment” button that remains fixed at the bottom/top of the screen when users scroll, similar to the default Shopify “Add to Cart” button functionality.

This button should be visible on all product and service pages, ensuring users can easily book an appointment without needing to scroll back to the top or bottom of the page. The goal is to increase conversions by making the booking process seamless and more accessible throughout their browsing experience.

Key details for the feature:

• The button should be responsive and work on both desktop and mobile devices.
• It should be customisable to match my website’s design (colour, font, etc.).
• The sticky button should include a clear call-to-action like “Book an Appointment” and link directly to the booking page or relevant product/service. This feature would improve user experience by simplifying the booking process, reducing friction, and driving more conversions.