I have two implementation questions. 
1) If i use spline or splineArea the line moves outside the actual range of the dataseries.  The curve should occur after the change in data happens not before. Is there a way to solve this behaviour. 
2) If wish to create a tooltip for just one of the dataseries. Is this possible? I tried a shared data series but this give a blank line when i empty the toolTipContent.
To clarify my questions i attached a screenshot.
