Need to plot one series on top of another

[PHMLR]

In the attached file, I have several X-Y scatter plots, each of which is a plot of two series. One series is plotted with green X's and no line, while the other series is plotted as a blue line with no markers. I can't get the blue line to plot on top of the green X's. I tried changing the order of the series under the "Select Data" menu, but it still puts the green X's on top of the blue line. Can someone tell me how to get the series with the blue line to plot on top of the green X's? (i.e., I want the blue line to always be visible, even when the green X's have similar values). Thanks!

[Andy Pope]

Interesting quirk. I would have expected changing the plot order to bring the blue line to the forefront.

2 choices. Move the blue line to the secondary axis and then delete the secondary value axis.

Or apply line colour to the green cross series and set the line transparency to 99%

[PHMLR]

Great idea to plot the predicted data (the blue line) on the secondary Y axis. I did that and used a custom format to hide the labels for the secondary Y axis (see attached). It works perfectly. Thanks for your help.