1) - camera configuration are put into effect immediately, as well as caption, overlay and so on
- local save and ftp save require a stop/start of the service (not the camera) to put into effect
- save on the camera configuration stores the current config to disk
- save in the file menu stores the currently loaded cams and all global configuration to disk
- you never need to restart the application to put a configuration change into effect unless you're told to do so (activation of Pro License)

2) - you can use any numer for local save, from fractions of seconds to large numbers.
- Counting starts when the camera/service starts