default property "arrow" for object "line" ?

[Hans Gerber <gerber niekom de>]

Hi,

just recently dicovered the magick of dia. Mrvellous, thanks to all
contributors.

I guess there is a way to assign some kind of default property for the
objects, but can't find that in FAQ or mail-archive so I dare to ask. ;)

The Problem:
I insert an Object of type "line" and change its property to some other
color and to display arrows. Very nice indeed. But as soon as I insert
another  new line I have to assign the very same propertys again. 

Do I really have to create my own object for a "line with red color and
arrows"? Or is there a doc describing how to change the
default-properties of some already known object?

Thx,
Hans