separate video of each participant

In the meeting, I want to separate the full-screen video of each participant for the on-site screen combination display. What should I do? The current practice is to configure a computer for each participant to display his picture in full screen. I know that there is a ZOOISO program that can do this, but it can only be used under MACOS, and can only separate up to 5 participants, which is too small.
Another question is how can I quickly display the full screen of a participant, for example, give the participant a number, and then correspond to a shortcut key, click to quickly display his full screen, instead of exiting first The full screen of the previous person, then switch to the gallery view, and then find the participant, and then full screen, this is too much trouble, the display is not very professional.
Could anyone solve my problem, thank you.