I want to create a trajectory plot and each trajectory is a set of XY pairs (2 columns). For that I've been using the scatter plot, however if I select more then one pair of XY columns Excel creates multiple Y series using the first column as X axis values for all the series. So I have been forced to add series one by one in the Select data menu. Since I have hundreds of trajectories to plot, I'm searching for a more practical way to add series to the graph. I would greatly appreciate any help on this issue.