Zoom Webinar Recording

I created a Zoom Webinar for an upcoming class we have but I am having trouble with the recording. Our company is sharing the screen (presentation) and we want the speaker to sit on the top right of the presentation. Last time I did a practice recording, the shared screen was to the left and the video was to the right, separate and on a black column. What settings do I change so the speaker video can be recorded on top of the presentation?