Temporarily pulling edit ability off the chart.
It's starting to have intermittent issues. Could be an edit in progress, but I can't be sure. The summary equations applied to all the cells. Then fixed. Then a summary equation vanished (not hue). Then came back.
I need to clean this up. There was also a 0 instead of an Off and other minor things.
You can still access it, just not add anything to it.
I hope this chart is of help to folks.
why don't you turn it into a form and people can submit it and it'll add results to the next sheet.
tools -> create a form