[news.eclipse.modeling.gmf] LifeLine Figure - Sequence Diagram

[daniloa.oliveira@xxxxxxxxx (Danilo )]

Hello,

My problem is... i am developing a sequence Diagram and i need build a 
complete LifeLine figure.
I have this facts:

i have a LifeLine Figure how Figure 1.

http://img90.imageshack.us/img90/4543/lifeline1zd3.th.jpg
Figure 1;

I need put a "Activate Bar" how show the figure 2.

http://img142.imageshack.us/my.php?image=lifelinewy1.jpg
FIGURE 2

Details: The Lifeline figure is a rectangule Geral, with 2 rectangule 
inside, one for "head and name" other custimized for "Line".  
rectangule Geral has: border Layout. 
Rectangule "head and name" has Stack Layout and Border Layout Data 
Beggining. Rectangule "Line" has Stack Layout and Border Layout Data 
Center.

The Rectangule "Activate Bar" is normal rectangule with minimium and 
maximun dimension size features seted.

In the Mapping, i try to put a child reference of "Activate Bar" inside 
node mapping of Lifeline, then this error is showed when i try paint the 
Activate Bar.
"Could not open the editor: org.eclipse.draw2d.geometry.Rectangle cannot 
be cast to java.lang.Integer"


ps.: I dont have problem with LifeLine figure, but with activate Bar 
figure.

Any help is appreciate.

Greetings,
Danilo