We’re planning to add support for [wrap] tokens in the rich text editor, but it will take us some time to implement this properly. At the moment, we don’t have an ETA. Please also keep in mind that the annual Discourse meetup is coming up soon, so many team members will be away, meaning work on this feature will be paused or slowed down over the next few weeks.
Until then, the best option is to switch back to the markdown composer.