There are three special properties for Arrows.
- Head
- Tail
- Size
Head and Tail: are used to specify the symbol that will appear on the ends of the arrow.
You can specify a custom user defined arrowhead or tail. User defined arrow heads are based by selecting User Defined and then selecting one of your existing blocks. (i.e. Those in the Block Palette)
Size: Length of the arrowhead or diameter of the dot
