rulerLane - used to set the lane for the marker in the overview ruler. If not specified, it will default to the right hand lane. Use one of "left", "center", "right", or "full". You can also use "none" to disable the ruler markers.
rulerLane - used to set the lane for the marker in the overview ruler. If not specified, it will default to the right hand lane. Use one of "left", "center", "right", or "full". You can also use "none" to disable the ruler markers.