Easy Chart AutoRange Min Size


I am using a Easy Chart to display the trends of some data.

1st issue - Although I have round my data to 2 decimal places, the Y-Axes still shows 0.000000. I don’t know how to make it to 1 or decimal places at the chart.

2nd issue - the Auto-Range of the Chart is defaulted to be 1E-8. Then I tried to change it to be 0.0. Once I have changed it. There is an error at the Chart and I could not change it back to 1E-8 again.
What is the use of this chart property at the Y-Axes called .

Thanks for your inputs and help.