The Change Case plugin for Obsidian adds a range of useful text transformation capabilities to your notes editor. With this plugin, you can easily switch the case of selected text to meet your writing style or formatting needs. The plugin includes various commands such as converting text to lower case, UPPER CASE, camelCase, and more. You can also use the "Select from list" command to choose from a range of options. Additionally, the plugin supports multiple selections and handles non-Latin alphabets and Markdown formatting with ease.