I do not believe you can. My understanding of the environment is that a job once created holds the tests/scripts as they were when the job was created. Therefore if you edit a test or script, your changes will not be reflected in the previously created job. Someone please correct me if I am wrong.
don, CSTP, QAD/TP user since 06
Test Partner 6.3; QAD 6.1; QADLoad 5.9