title: SWITCH macro's initValue
body: <p>In a template, I want to use a <code>$SWITCH$</code> macro. It requires me to specify an <code>&lt;initValue&gt;</code>:</p>
  
  <p><a href="https://i.stack.imgur.com/mjhAI.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mjhAI.png" alt="enter image description here"></a></p>
  
  <p>What's the role of this <code>&lt;initValue&gt;</code>? What should/can I pass in as <code>&lt;initValue&gt;</code>? Note that no autocomplete suggestions appear on <kbd>Ctrl</kbd>+<kbd>Space</kbd>.</p>
  
  <p>Below is the Inspector of the macro:</p>
  
  <p><a href="https://i.stack.imgur.com/zl0Eo.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zl0Eo.png" alt="enter image description here"></a></p>