The "Legend" tab displays the legend information that is utilized with the current view. The number osf samples associated within each group is also specified (N=#). The legend can be copied to the clipboard (with or without a border) from the Legend tab options.
Right clicking on one of the items in the Legend allows the user to "Change Color" that is associated with that item or to "Change Column Properties" for that item:
Selecting "Change Column Properties will open the "Column Properties" window:
This window is described in detail in the "Column Properties" section.