Can you please make it so that when you are drawing a line or arrow in the editor, holding the control key will force the lines angle to be a multiple of 45 (0, 45, 90, 135, 180, 225, 270, and 315).
Also can ctrl+drag for the rectangle, elipse and highlight create squares and circles. Microsoft Publisher and many other windows programs exhibit this convention.
2012-03-16 08:06:55 PDT in Greenshot