If you have two displays you could use something like Synergy to accomplish what you want. I use it both at work and at home. I work for two companies under the

If you have two displays you could use something like Synergy to accomplish what you want. I use it both at work and at home. I work for two companies under the same owner, and I do all my IT related support work on one PC and my other duties on the other. I have two screens side by side, and one keyboard/mouse connected to the machine I use the most. It's set up as the KM server under Synergy. I just drag my pointer to the right edge of my left display and it seamlessly transitions to controlling the computer hooked up to the right display. At home I have a Slackware workstation, a Windows gaming machine, and a Mac mini, each with a dedicated display. Again, I can drag my mouse pointer to the left or right edge to access either of the screens/PCs left or right of my main display. There is an open source fork called Barrier as well.