Adding configuration file in a job using command line option in the JOB Properties

Hi,

I need to add multiple configuration files to an SSIS Job using Command line option in the JOB Properties.

/File "C:\temp\Package.dtsx" /CONFIGFile "C:\temp\ssisoptions.dtsconfig"

the above method works for single configfile.

But i need to add multiple config files..how can this be done??