@mhdajmalik,
Need Line Marker. like showing in image-1 [marked as 1]
You can use stripline attached to secondary axisY and set labelPlacement to outside.
Need Zooming option in the y-axis, I applied ZoomingEnabled but it is not working
You can use zoomType property to control the axis for which zooming and panning are enabled.
Y-axis is the DateTime value
Please take a look at this jsfiddle.
Also can you kindly create jsfiddle with the issue, so that we can look into the code and the chart-options being used, understand it better and help you out?
—
Vishwas R
Team CanvasJS