Polygon:
F1	: set new polygon

Image:
F2	: zoomin
F3	: zoomout
Ctrl  + Left Mouse Button Down	: zoomin
Shift + Left Mouse Button Down	: zoomout
Hold down the left mouse button and move
to move the image.

Gates:
Use the color buttons on the toolbar to
activate gate.
Press the no entry button to hide active
gate.
Activate a gate and move the mouse over 
the graph (left mouse button down) to set 
the gate.

Graphs:
Double click on the axises to rescale
graphs.
Double click on the title of graphs to
change.


