[news.eclipse.platform.swt] TreeViewer: Show Control When Cell Isn't Act

[AdamC <adam@xxxxxxxxxxx>]

I have a treeviewer and I would like to have a button visible always, as 
in Snippet126.  Is this possible with a treeviewer, or do I have to use 
a plain tree and manage the items myself?  I have seen the examples 
using celleditors, but these controls are only visible after clicking in 
the cell.

thanks,
adam