Issue #3270758 by abramm: Add 3D Secure checkbox description

src/Plugin/Commerce/PaymentGateway/Omise.php

@@ -142,6 +142,7 @@ class Omise extends OnsitePaymentGatewayBase implements OmiseInterface {
     $form['3d_secure'] = [
       '#type' => 'checkbox',
       '#title' => $this->t('Enable 3D Secure support'),
+      '#description' => $this->t('Required if 3D Secure is enabled for your Omise account. Note that this would introduce redirecting user to Omise and back to your site during checkout.'),
       '#default_value' => !empty($this->configuration['3d_secure']),
       '#required' => FALSE,
     ];