Wow, thanks for let me know there is lot feature in G-800. After I read what you explain for me, I feel that I was sleep thousand years ago. Now, I 'm lost about .ups file and .stl file. Please consider that I'm very very new to this G-800 althought I have my G-800 for 3 years now. I just leave my G-800 for dust covering it. Is any source can I read more and experience more about those files. Thanks