https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21Render%21Element%21VerticalTabs.php/function/VerticalTabs%3A%3ApreRenderVerticalTabs/10
function VerticalTabs::preRenderVerticalTabs | Drupal API
functiondrupalapi
https://chromewebstore.google.com/detail/verticaltabs/imimolldggofidcmfdkcffpjcgaggoaf
VerticalTabs - Chrome Web Store
chromewebstore