title: SilverStripe Tab Customization
body: <p>In SilverStripe's CMS I want to remove the <code>Content</code> tab within a page. I can do this as follows:</p>
  
  <pre><code>$fields-&gt;removeFieldsFromTab('Root.Content.Main', 'Content');
  </code></pre>
  
  <p>I then want to create my own custom tab:</p>
  
  <pre><code>$fields-&gt;addFieldToTab('Root.Content.MyTab', $myField);
  </code></pre>
  
  <p>However by adding my own custom tab it brings the <code>Content</code> tab back.</p>
  
  <p>The other option is just to make <code>MyTab</code> the default 'up' tab. Is that possible?</p>