The Studier plugin enables users to create quizzes directly within their Obsidian notes, making learning and retention more effective. Users can write questions in their notes with customizable formats and settings, allowing the plugin to identify and present the questions as interactive quizzes. When initiated, the plugin selects a random note containing questions and displays them for users to answer and check. If no questions are present, it functions as a random note picker. This tool enhances note utilization for studying and knowledge retention with flexible question formatting options.