fncchart problems.zip (8.4 KB)
Please play with the checkbox to make Series[1].Points[0].Undefined = True, the checkbox to enable/disable the second data point & show/hide YAxis.
If YAxis is visible, setting Undefined may cause several runtime point overflow errors.
If there's no second data point, and the first one is disable, you cannot invoke the editor.
This sample also shows the problem I had trying to centerthe bar series with just one point, at the other topic TMSFNCChart - How to center a bar when the series has only 1 point?
Now I noticed you've answered something there. I'll test it.