Specifying tool discovery path using command line build for CCS projects

Hello,

We are using a command line script to import and build a set of existing CCS projects for CCS v4.2.1. 

Here's the 2 main lines from the script where this happens.

system("\"$ENV{'CCS4_DIR'}\\jre\\bin\\java\" -jar \"$ENV{'CCS4_DIR'}\\startup.jar\"  -data \"$ENV{'WORKSPACE_DIR'}\" -ccs.location $pjtDir/$pjtName -ccs.projects $pjtName -application com.ti.ccstudio.apps.projectImport -ccs.overwrite"); 

system("\"$ENV{'CCS4_DIR'}\\jre\\bin\\java\" -jar \"$ENV{'CCS4_DIR'}\\startup.jar\" -data \"$ENV{'WORKSPACE_DIR'}\" -application com.ti.ccstudio.apps.projectBuild -ccs.projects $pjtName -ccs.configuration Release");

Note that the WORKSPACE_DIR variable is created in the script, so it's a new CCS workspace.

All software components/tools like BIOS, CE, FC, etc. are installed in the directory C:/ti; for example, C:/ti/bios_6_30_03_46.

Typically when we have a new workspace, we manually go to "CCS->Window->Preferences->CCS->RTSC->Products" and "Add" C:/ti to "Tool discovery path:" 

Is there any command line option that we can specify that does the same thing?

Thanks!