AFS-SET
Selects
automatically sized files (AFS mode) 
as the default for CREATE-FILE 
and the logical 
restore commands 
Syntax
AFS-SET
Comments
AFS-SET affects only the current Reality process and persists only until 
logoff or until explicitly 
cancelled with 
You can select AFS mode as the default for a database by setting the AutoFileSize configuration parameter. This parameter is normally set in the master configuration file, so that automatic file sizing will be used on new databases.