I have a line chart that plots pressure (Y-axis) vs temperature (X-axis) datapoints. The points are being plotted (and thus connected) in the order the data was entered into the database based on time of entry. However, I need a way to indicate which point was the last one entered. Or better yet, display directional arrows on the line chart so it's obvious which point is the oldest and which one is the newest. Does anyone have any suggestions for formatting one datapoint to look different from the other datapoints in the same series?