Thingspeak chart

[Dudu]

Hi,
the first issue it was a bug. Ι have already fixed.

About the second issue I intend to add a min-max filter on the Thingspeak chart like the DataBucker filter.
I will add and the ability for custom Y-Axis range instead of the auto.

I have fixed the menu issue too. 

These changes will be available on the next update 0.4.10 and above

Thanks