11 or 12 years ago when BaseCamp required the library to be in a certain location before we had a Choose Library or New Library option, I created a symbolic link to the library I had placed in my dropbox folder. It allowed me to have the same library on iMac and MBP. I had instruction I posted on this forum and I found the link but the instructions or no longer available. I think the symbolic link is still work but I can't choose a backup library. I think the symbolic link is graying out the backup file which I think is a container instead of folder and not allowing me to select. Can anyone give me detail instructions as to how to find the symbolic link and remove it using terminal. unless there is a easier way. Thanks