title: IdeaVim, multi cursor usage
body: <p>I'm trying to trigger (to use) the IdeaVim multi cursor plugin: <a href="https://github.com/JetBrains/ideavim#emulated-vim-plugins" rel="noreferrer">https://github.com/JetBrains/ideavim#emulated-vim-plugins</a> -> multiple-cursors</p>
  
  <p>In the github docs we have commands: <code>&lt;A-n&gt;</code>, <code>&lt;A-x&gt;</code>, <code>&lt;A-p&gt;</code>, <code>g&lt;A-n&gt;</code> to trigger/use this plugin, but I'm not able to make this plugin working at all...</p>
  
  <p>I've added in my .ideavimrc <code>set multiple-cursors</code>.</p>
  
  <p>Am I missing something?</p>
  
  <p>I'm using OSX (if that's important).</p>