Question on UML Stencils and resizing to fit text

[Peter McLain]

Hi,

   I'm using OmniGraffle_4_2_2.  I'd like to have a stencil similar to  
the UML-General stencil for classes, but I need a few more sections.   
The UML stencils will automatically grow or shrink each section to fit  
the text, and the sections below will move up and down to adjust  
(e.g., if I type in a bunch of Attributes, the Attritbutes section  
grows, and the Operations section slides down to accommodate).  I am  
unable to duplicate that behavior.  In fact, simply doing an ungroup,  
followed by a regroup on a freshly placed UML class shape breaks it:   
if I then type in the Attributes, the attributes section grows, but it  
covers up the Operations section just below it.  Is this a pro-only  
feature?  Or do I need to do something special when I re-group them?

--  
Peter McLain