I am plotting data versus date it was collected in graph builder and would like to show the weeks with major grid lines. I can set this up in the axis settings, but the weeks "start" at a Thursday. If I change the start date of the axis, it still keeps the labels and major grid axis on a Thursday (just a week earlier or so). I can't figure out how to get the major grid lines and the labels to start on a different day (e.g. a Monday). Any suggestions?