Resets the command text to be ready to accept a group pattern (that is to 'GROUP usernumber PATTERN') This is used by the apply group menu to construct the basic command.
Namespace: Command
Void SetGroupPatternCommand(Avolites.Acw.Titan.AcwUserNumber)
http://[ip]:4430/titan/script/Command/SetGroupPatternCommand
groupNumber: The group number.