I have hit a snag with Google Drive and InDesign. I can create and save a file, but when I try to save the changes made in the file, it tells me it cannot write to the file because it is in use. In the end, I just save it with a number appended to the file name. It is not my favorite, but I’m guessing that it is something to do with InDesign wanting exclusive access and Google Drive trying to replicate the file everywhere.