You can use the following task commands in the MODIFYSCRIPTPackage Variable task:

TASK(TASKNAME,DESCRIPTION,TASKNAME)

TASK(TASKNAME,SOURCESITE, )

TASK(TASKNAME,SOURCEUSERNAME, )

TASK(TASKNAME,SOURCEPASSWORD, )

TASK(TASKNAME,PORTNUMBER,0)

TASK(TASKNAME,SOURCEFILENAME,)

TASK(TASKNAME,DESTSITE, )

TASK(TASKNAME,OVERWRITABLE,)

TASK(TASKNAME,NUMRETRIESONSOURCE,0)