Add series name to hover label/legend text

[vinaychuri]

I have a dataframe that contains rows for 'Date,Prod1,Prod2,Prod3...' and i can plot the line charts via:

df%>%
dygraph()

The plot displays lines as per the columns in dataframe and the legend displays the hover data.

But with more lines its gets confusing to understand which "Product" is being viewed as no column name/label indication exists.

Is there any way to add the column name as hover text or within the legend?

[vinaychuri]

Update 1:
The following code allows to highlight the series via hover but still no option to know the column name that is being highlighted.

dyHighlight(#highlightCircleSize = 5, 
              highlightSeriesBackgroundAlpha = 0.2,
              hideOnMouseOut = TRUE,
              highlightSeriesOpts = list(strokeWidth = 2)
              )