Heap has introduced a new feature called "snapshots" to enhance its Event Visualizer, which allows users to attach detailed data to analytics events without writing code. This feature enables users to easily capture and analyze data such as item prices or user inputs by simply interacting with elements on their website or app. By clicking on elements like the 'Add to Cart' button and hovering over the price, users can define events and attach custom properties, allowing for advanced filtering and grouping of data within the Heap dashboard. Snapshots also support capturing complex data using JavaScript variables and are designed to make analytics integration simpler and more efficient. Interested users can start using snapshots immediately by following the instructions in the provided documentation, with support available from Heap's team if needed.