i went to the xref manager link posted above, and saved the file. but now i don't know what to do with it or how to open the manager. i have no knowledge of how ruby script works, which i assume i will need to know in order to use this? can someone point me in the right direction

wow that was a fast response, thanks guys.

im pretty sure this can't be done, but i need to know the best way around it. a couple of us at work need to further develop a building we have in sketchup. so if we are all working on different parts of the building, how can we link the model back together besides actually copying and pasting each of our parts of the model together? or is that the only way. im used to working in revit and everyones files linking together. any suggestions? thanks.