This causes the file to be automatically saved after the specified number of changes are made during an edit session. Single-character operations are counted each as one change; more complicated operations (e.g. replace, line and word delete, block operations, etc.) are arbitrarily counted as five changes. A reasonable number might be something in the vicinity of 1000. A value of zero disables the operation. (To aggravate your mates and waste a lot of resources, you can set the value to 1.) When triggered, the file is saved exactly as if a manual SAVE command had been issued. Note that even after several such SAVE operations, you can still recover your original file by using QUIT to exit and then making a copy of the .BAK file. (e.g. .COPY MYFILE.OLD=MYFILE.BAK).
