The mark-open-files plugin helps you visually track which files are currently open in your workspace by adding markers next to them in the File Explorer. Each marker represents an open instance of that file, and clicking on a marker brings the associated tab into focus. This is especially handy for users who juggle multiple tabs and want a quick way to switch between them without losing context. Unlike typical file-reveal features, it provides a persistent overview of all open notes, offering a smoother navigation experience for multitaskers.