In order to loop between my screens I have the following section in my synergy.sgc file:

section: links
    Pedro-Acer:
        right = pedro-lubuntu
        left = pedro-lubuntu
    pedro-lubuntu:
        left = Pedro-Acer
        right = Pedro-Acer
end

With those settings When the client disconnects the server screen wraps around itself as seen in the image below. I don't want this behavior.

The only reason I set the config file to loop between my screens is because I want to have a single key to switch between them:

keystroke(alt+`) = switchInDirection(right)

If there is way to have a single key for switching in both directions without having looping screens then that would also solve my problem.