Borrowed Properties is a new feature introduced by Mixpanel that allows users to "borrow" data properties from one event to another, enabling seamless and comprehensive analysis across various events without additional engineering work. This innovation addresses the challenge of combining data from different events, such as tracking the "Product Category" property for a "Completed Purchase" event, which might originally only exist on an "Add to Cart" event. By facilitating data merging from disparate systems and different organizational teams, Borrowed Properties empowers users to conduct in-depth, cross-context analyses, such as understanding the impact of new features like Dark Mode on user onboarding, without the need for complex SQL queries or re-tracking by engineers. Available for customers on Growth and Enterprise plans, this tool aims to enhance analytical capabilities by providing a more flexible approach to utilizing existing data, thereby simplifying the process of gaining insights into user behavior and interactions.