Microsoft is testing new customization features for the Copilot key in Windows 11, allowing users to designate it to launch any MSIX packaged and signed application. This feature is part of a new beta build rolled out to testers. The Copilot key, which is set to open Microsoft’s Copilot app by default, represents a significant change in keyboard design for Windows. The Copilot experience has been transformed into a web app with the latest 24H2 update, limiting its integration with Windows settings. The customization feature is expected to be available to all Windows 11 users in the coming months.