The Save and Load commands described here control a second set of parameters saved and loaded only on request of the user. If you are changing setups, but are going to go back to the current setup after the new one is over, you can Save the current parameters, change everything and re-Start the cycle. Make as many interim changes and re-starts as you want, then when you want to go back the original settings, hit the Load button and the saved parameters will be restored. Click on Start button and you will be running with the old parameters again.