I have no idea whether it is technically possible or not, but sometimes it would be nice to be able to zoom in on parts of the screen.
On touch screen devices you can use two fingers to “pinch and zoom”. A standard Android/iOS feature
I have discovered I can do that as well, on my touchpad ( so not the screen in this case) of my laptop. Potentially quite useful, sometimes. 
Trouble is then you lose the rest of the page as the whole page zooms, so camera selection etc. Would be good to have an actual digital zoom on the cam player
using the Microsoft key and the + or - at the same time will zoom in to the point where you have placed the cursor.
There were zoom cams some years ago in some places. But they were bulky and had mediocre video and audio quality…
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perfect, but trouble is: I have a stationary PC.
Thanks! But what do you mean by or? control tab? or what ???
I use a PC with Microsoft OS. So u use the Microsoft key just to the left of the PC space bar…
Actually just pressing ‘control’ (‘command’ on a mac) with plus and minus keys will zoom a page in and out as well.
Thanks,mate. That works for me !