To lock the files or folders is protect overwriting same filename or blocking file and folder can not be delete.
 
LOCK
 
1. Select the files or folders, click button, Lock/Unlock window will appear.
 
 
 
 
2. Click to confirm lock the file.
 
 
 
3. The files or folders is locked, the lock icon will appear at the left hand side of the display list area.
 
 
 
 
UNLOCK
 
1. Select the locked files or folders, click button, Lock/Unlock window will appear.
 
 
 
 
2. Click to confirm unlock the file, the lock icon will disappear at the left hand side of the display list area.