The Editing Mode Hotkey plugin is a convenient addition for Obsidian users who frequently switch between writing in "Source" mode and previewing their notes in "Live Preview" mode. With this plugin, you can quickly toggle between the two modes using a customizable hotkey combination, making it easier to work on your notes without having to navigate through menus or settings. This plugin is especially useful for those who often work on multiple editors simultaneously, as it allows you to easily switch modes across all open editors with just one command.