Add panelists to recorded webinars for answering live Q&A

I've been using Goto Webinar for 6+ years now and one of my favorite features used to be using "simulated live webinars".  When they made the change to make those called "recorded webinars" it seems like some functionality got lost. One of which was the ability to have live Q&A as part of a recorded session or to simply be able to add panelists to the session to monitor chats & questions in the control panel. I really need this functionality back as the only way to do this now is by holding a live webinar and playing the recording on a second screen. Hardly a way to scale when you're doing multiple webinars a day or even if it's just a few times a week.