Pointing arrow tool

 From:  Ambimind
4972.1 
I wondered if it was possible to create a script that will evoke a line drawing dialogue, and which would produce an arrow head at the end of that line, based on the direction of that line.
I use many of these during instructional diagramming and its becoming a pain having to repeat this constantly.

Thanks,
Ambimind

EDITED: 1 Mar 2012 by AMBIMIND