For more tutorials, hints, tips and student guides, visithttp://archtechstudent.weebly.com
This tutorial Shows users how to use the various Copy Command in Google Sketchup, constructing a truss roof as a working example of how the commands are performed
Should you need any help, have any queries or would like to request a tutorial, leave me a comment or head over to my site linked above and I will be happy to help :D