DS 4.2 how to pass values from ABAP data flow to ABAP program

I have a DS 4.2 ABAP data flow where I've initially set the datastore ABAP execution option to 'Generate and Execute' and an ABAP program was created on the ECC side.  Now I need to modify that ABAP program as I will be changing the ABAP execution option to 'Execute Preloaded' and migrating through our Dev/QA/Prod environments.  However, the ABAP program was created with default values like the following which are going to have different values per environment/run:

PARAMETER OUT_DIR(60) DEFAULT

'/interfaces/D11/110' lower case.

PARAMETER P_PROGID TYPE RFCOPT-RFCEXEC DEFAULT

'SAPDS_e9f9fd65f0ca11e380ed7063e720f2dc'.

DATA $PARAM1(14) TYPE C VALUE

'20140610101049'.

I understand how I can change the ABAP program to not have these defaults but how do I go about passing the appropriate values from the DS ABAP data flow to these ABAP program parameter/data fields?

Thanks,

Brad