Keyboard shortcut for switching screens using synergy
According to the old config guide (page now deleted, but archived at the Way Back Machine) you can achieve this with config options like this:
keystroke(alt+left) = switchInDirection(left)
keystroke(shift+control+alt+super) = switchToScreen(moe)
This functionality can be added on the windows version by launching Synergy from the start menu and selecting "HotKeys" from the options pane.