How Do I set Up Speaker View as the Default View in My Client's Webinars

I'm not sure if there's been a change in the way zoom does it, but it used to be that I was able to set up "Speaker View" as the default view for attendees in a webinar.

Does anyone know how to set this up now? I've tried looking up and down the settings, and I can't seem to find a way to do it. 

In case this feature is not built-in, I hope the folks from zoom are looking at this. it's especially helpful when there are many moving parts in the Webinar and sometimes changing the view is overlooked - which leads to the audience seeing what it's not supposed to...