I miss option to disable sending some key combinations.
Next to to the "Send key combinations" should be option "Exceptions" where we could select some combinations which won't be sent to remote computer.
The desired key combination for me is "Winkey + Ctrl + Left/Right" which switches virtual desktops at Windows 10.
Using this exception I could have two virtual desktops on my local computer: Desktop 1 and Desktop 2.
On Desktop 1 I would have my local computer, whereas on Desktop 2 I would have the maximized TeamViewer window with remote computer. Switching between these two computers with key combination "Winkey + Ctrl + Left/Right" would be really nice and powerful:)