To view the list of available datasets, select the menu item View | Data
sets from the menu bar or from the menus shown when right clicking on a graph.
In the list, the dataset name is followed by the name of the data used for
the X variable (this will often be the default name 'X'). Underneath each
dataset name, the names of the data available for the Y variable are shown.
Select one of the Y data variables and click on the 'Plot Data' menu.
Add Plot to Active Layer: adds a plot of the selected data to the current
graphs active layer.
Add to Layer: adds a plot of the selected data to the layer selected
from the submenu.
Remove Plot: removes the plot of the selected data from the current
graph, but does not delete it.
Delete Plot: removes (if necessary) and deletes the plot of the selected
data.
