Here's a quick couple of tips for you Capture One! 

If you use the Loupe tool (the tool you see highlighted in Orange on the top bar), you know that it allows you to zoom into a particular area without magnifying the entire image (such a time saver!). 

However, it also works on thumbnails too. So in case you want to quickly check focus on a shot without clicking on it, you're able to so just I did below!

Loupe Tool Size: 

Also, in the second image below, you'll see that as I hold down the icon, you I have the ability to change the size of the loupe tool itself, so you utilize a much larger window. Also in the loupe tool settings, you're able to change position and magnification amount!

Also don't forget, Capture One 11 just came out, check out some of the awesome updates here (link). I am so glad they added a lot of the features we wanted. If you have 10, 9 or any previous version, here's the cost to upgrade as well (link). And lastly, my colleague Rick Rose has a 10% off code using AMBROSE on checkout. As I get asked quite often I figured I'd pass it on.

Happy editing!