The Pane Relief plugin enhances Obsidian's tab and pane management, offering persistent tab history, tab movement controls, and improved navigation. It introduces features like browser-style tab navigation with hover previews, draggable history lists, and tab movement using shortcuts. Users can maximize active tabs, toggle a 'simple sliding panes' mode for horizontal scrolling, and lock focus to prevent sidebar panes from stealing cursor focus. Additional commands allow users to move between tabs, swap tab positions, and jump to specific tabs or windows. The plugin also integrates well with other plugins like Style Settings for customization and Custom Page Headers for better tab navigation. Its aim is to provide a more browser-like experience for users working with multiple tabs and windows in Obsidian.