You can add more sections by copy-pasting other parts of the code. I've gone ahead and included it below for you to copy and paste.

Just remember to change the hex colour to the one you're using :D

<!-- APPEARANCE -->
  <div class="row no-gutters" style="font-size: 16px; color: #7F7DD4;"><div class="col-auto text-uppercase" style="letter-spacing: 1px;">
    APPEARANCE
  </div><div class="col mx-2 my-auto"><hr class="my-0"></div>
  <div class="col-auto px-1 my-auto"><i class="fas fa-eye"></i>
  </div></div>
  
  <div class="p-1 mb-2">
    
    <p>Write stuff here.</p>
  
  <!-- Add more text above this line -->
  </div>