hybrid symposium - conference room and webinar

Hello,
I am organizing a hybrid symposium in conference room and webinar very soon. (4 conferences in the day)
To make it more user friendly, I intend to use a 1080p wide angle camera to record the speaker and the whole scene with screen.
I'm having trouble figuring out how I can arrange the computer, camera and microphone connections:
- Use the ensemble camera as a priority on the speaker standing at the lectern.
- Activate the speaker's personal lapel mic.
- Organize the panelists' computers with screen sharing from all 4 speakers.

- how to use the screen sharing with slide show
Thank you for your help

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