Default Units:
Select from a list the units to be used.
Show Ruler
Show rulers on the top and left sides of the canvas.
Show Grid
Show grid lines on the canvas.
Grid Size:
Enter the distance between grid lines.
Snapping Angle (degrees):
Enter the degrees the rotation handle should snap objects to as you rotate.
Auto Connect
Enable auto connect new symbol
Enable/disable automatically connecting a new symbol to the last symbol added to the document.