Change view on youtube

Hello, 

I need your help for a issue that I am not able to resolve.

I started a webinar, a panelist started a presentation and there is the Gallery view.  On the zoom webinar there are two panelist and the presentation on screen.

When starting Youtube streaming live on the screen there are only presentation and speker. 

I would like that on youtube streaming live there were, like on zoom, presentation and two panelist. 

Can someone helps me ?

I'm waiting for you help,

it's important.

King regards.