You can set a delay for the workstation to exit a table screen a server
has left open for a long period of time.
P.O.S. Control / View / Options / Security
Inactivity:
Specify an inactivity delay, in minutes, before the workstation comes
back to the server Login screen.
Note: If there are items selected but yet to be ordered, or if the
screen is currently displaying the hostess' floor plan, the workstation
will not go back to the Login screen. Setting this field to 0 will disable
this feature.