I have the ANT developement kit and on the AT3 modules I want to upload and save the program already on the chip (the default program) before I download my application program via AntwareII. This way I will be able to return the module to its' original status for the next project.
It is not possible to overwrite the default SensRcore script, as it is part of the firmware of the device. You can use the dip switches in the battery board to select between the built in script and your own custom scripts.