. On this exemple you can see the axes and grid, a few circles and segments and also some lines showing the way two selected events are projected on the segments. See <A HREF="#DisplayOptions">display options</A> for more about that. <BR><BR>
The right area can be seen as three functionnal parts: the upper one is always present and is used to select  the mouse mode and the selection mode, and also to performs actions on the current selection. The bottom part is also always here; it is used to set the displa