This is a short preview of a full ScreenCastsOnline video tutorial. Head over to https://screencastsonline.com to view the full version of this tutorial as part of a free 14-day trial membership. In show 837, Don covered Hook for macOS, an interesting utility that can link documents in both directions on your Mac to make it easy to switch between contexts and work on related documents stored anywhere on your computer. Since that screencast, the application has evolved and even has a new name: Hookmark. Now at version 5, it brings some new functionality and in this video, Lee revisits some of the core principles of the app before diving into its new features, as well as Hookmark's integration with several important apps, such as Drafts, Fantastical, and OmniOutliner.