As long as you have 1 scanner/kit you can do it. To install it you need all 3 components, the scanner, micro SD card, and ethernet/wifi connection. Once you have it on one machine, you can just add the micro and wifi adapter (<$20) and run an ethernet to the scanner on the other machine just to get it set up. Then just add your name to the home team and it will save on all your machines. You can walk up to the machine without the scanner, hold the left flipper button down, and it will pop up your 5 team members to choose from. It works for me since I only have a couple frequent users on my home team. I have the full kit on Godzilla and Iron Maiden, no scanner option on Led Zeppelin. If somebody really wants to play my LZ they can join the home team on one of my scanner machines and it will save to LZ.