Improve touch and hover behavior on graph

[lxffm]

Hi all,

first of all thanks for this great integration.

I struggle a bit using the graph to have a view through the past datapoints. Especially during touch usage on my phone for instance, you always need to hit the datapoints. Would it be possible to simply move my finger across the the graph, and he will take the according value without the need to exactly hit the datapoint?

Also on PC when you hover the mouse, it could simply show the according value as long as you stay in the area of X-Y axis'

Let me know what you think!

Best,
Alex