Alternate method if you don't want to mess with game prefs: Make a new sandbox game, pick a big map with lots of space (optional: turn on cheats, set speed to +4 or variable. Just use cheats to get lots of mass and energy, don't use cheats to place buildings) Build all of your templates End the match On the new computer: Play the replay file Step in to your own point of view Select each of the things you built and choose "make template" End the replay You will have the templates saved, they will be there the next time you start playing This is also an easy way to share templates between different players