I will try one more time to get an answer to a very annoying problem on my A4 ketron

Its not saving the slider settings

Can anyone tell me if the Blue dot beside the Save Slider should be ON or Off to save the setting. AJ tells me Off but some do not agree and I have obviously tried both but the volume of my registrations is still changing even though i save them every time.
So, is it Blue dot On or OFF guys??