Title: stefan's Profile | WordPress.org

---

# stefan

  [  ](https://wordpress.org/support/users/derkopp/)

 *   [Profile](https://wordpress.org/support/users/derkopp/)
 *   [Topics Started](https://wordpress.org/support/users/derkopp/topics/)
 *   [Replies Created](https://wordpress.org/support/users/derkopp/replies/)
 *   [Reviews Written](https://wordpress.org/support/users/derkopp/reviews/)
 *   [Topics Replied To](https://wordpress.org/support/users/derkopp/replied-to/)
 *   [Engagements](https://wordpress.org/support/users/derkopp/engagements/)
 *   [Favorites](https://wordpress.org/support/users/derkopp/favorites/)

 Search topics:

## Topics Engaged In

    - Topic
    - Participants
    - Replies
    - Last Post
 *  -  [Two “pay” buttons on checkout page](https://wordpress.org/support/topic/two-pay-buttons-on-checkout-page/)
    -  Started by: [stefan](https://wordpress.org/support/users/derkopp/)
    - 2
    - 2
    -  [4 years, 7 months ago](https://wordpress.org/support/topic/two-pay-buttons-on-checkout-page/#post-14950637)
    -  [Syde Joost](https://wordpress.org/support/users/joostvandevijver/)
 *  -  [API Returning Error](https://wordpress.org/support/topic/api-returning-error/)
    -  Started by: [europoint](https://wordpress.org/support/users/europoint/)
    - 4
    - 1
    -  [4 years, 8 months ago](https://wordpress.org/support/topic/api-returning-error/#post-14881890)
    -  [Daan van den Bergh](https://wordpress.org/support/users/daanvandenbergh/)
 *  -  [Add custom labels to feed](https://wordpress.org/support/topic/add-custom-labels-to-feed/)
    -  Started by: [stefan](https://wordpress.org/support/users/derkopp/)
    - 2
    - 1
    -  [4 years, 8 months ago](https://wordpress.org/support/topic/add-custom-labels-to-feed/#post-14817647)
    -  [Sol J. a11n](https://wordpress.org/support/users/solstudioim/)
 *