Gallery postion while sharing my screen

I see the image now.  Yeah, not really possible with only one monitor.  I even tried enabling Dual Monitors on my single-monitor test station, hoping that the "extra window" would still show... it doesn't. 😞

But when screen sharing, the person doing the sharing should be able to see video of other participants:

The floating menu bar highlighted in purple at the top, the displayed video highlighted in red in the upper right - everything else on the screen is being shared.  The video strip is also floating, and can be moved around as needed, so the presenter can see his/her own presentation details.

Here's the trick you might be missing: when "Sharing Screen," don't share the screen... share the specific window with the content you want seen:

This way, there's no ugly black boxes that hide parts being displayed, or the possibility of Zoom windows showing. 

If, as many do, you are sharing a PowerPoint Slide Show, always look for the window labelled "PowerPoint Screen Share".  See the presenter guide I created on Screen Sharing here:
https://meetingsandwebinars.com/userguides/how-to-screen-share/ 

Maybe in all of this, you'll find an approach that your presenters can easily deal with.  When I'm producing someone else's webinar, I'm always ready to start the screen sharing myself (I ask all presenters to provide me a copy of their slides into a DropBox Request folder in advance).  I've had some people say "I absolutely must have my presenter's notes on screen" but can't follow these instructions to share the Slide Show content while manipulating their slides in the notes view; ultimately I end up either convincing them to print their notes, or let me share their slides - or both.

Also trying to figure this out! I do have my notes on a separate screen, but would really like to see the gallery big and the shared screen tiny: I don't need to see the screen-filling slides, THEY do! Using Google Slides, FWIW, and hoping someone has figured this out : )