The Server menu contains commands to Start and Stop file sharing. Selecting “Start” is equivalent to opening the “Sharing Setup” control panel and clicking the “Start” button. Conversely, selecting “Stop” is equivalent to clicking the “Stop” button.
The “Logging” menu command, which is currently disabled, will eventually let you turn on a feature which will log file sharing actions like people connecting, errors and the like to a text file for later reference.