With this option, you explicitly copy files locally while you have a live connection, close the connection, work on the files later, and upload them back to the server after you have finished.
Save Changes dialog box when the user requests Close or Quit because that is the time when it has to reconcile the differences between the copy of the document in memory and the copy on the disk.
And there was a close relationship between the increase in abnormality ratio of free-hand drawing, clock-drawing, line bisection test and drawing copy and the old age and lower level of education.