Guidelines provide visual cues to help compare data from multiple charts at the same point in time.
To create a guideline:
Right-click a point on the timeline at which to compare data, then select.
A vertical guideline displays at the selected point.
To move the guideline:
Hover the cursor at the top of the guideline until the cursor changes to a hand symbol and drag to a new position on the timeline.
To delete the guideline:
Do one of the following:
Right-click the guideline, then select.
To remove all guidelines, select.