It would be a very useful feature, if the Hosts (as moderators) could move messages from Chat to Q&A and vice versa in Webinar mode.
This would help the participants to understand the difference between these two discussion forms, as most people intuitively use Chat also for questions even when Q&A is enabled in Webinars
It appears that this is a feature request for the Zoom client. For suggestions and feedback regarding the Zoom client, please use our feedback form here. This forum is only meant to assist developers who are integrating the Zoom SDK into their own applications.