The Quick Peek Sidebar plugin provides an intuitive way to access sidebars by automatically expanding them when you hover near the edges of the window. It supports both left and right sidebars, with options to enable them individually or sync their behaviour. Users can fine-tune the trigger area, animation speed, and delays for expanding or collapsing. The plugin also offers an overlay mode to make sidebars slide over the main content instead of pushing it, along with settings to control their maximum width. These features are especially useful for users who prefer a cleaner workspace but still need quick access to sidebar tools.