Adding a Containers to a new toolbar

Hi all, 

I posted a similar request to TBUDL but drew a blank.
I have noticed other users post on here if no luck on tbudl;
I hope this is in order..


My problem is that I want to add, say for example, "view modes" to my toolbar: 
but as a single drop-drown button, and not as separate buttons. 

My assumption was that I need to add a container to the toolbar and then populate it.

So, I click the "create new container item" icon, give it a name,  and it is  added to the layout panel. 
But a) its empty and  b)  it doesn't even appear on the new toolbar. 

What I can't work out is how to populate it. 
Am I doing something daft or is it the Bat  ? 

Can anyone point me to some documentation or explain how to do this please. 

--  

Thanks

Graham

Using The Bat! v3.80.06 on Windows XP 5.1 Build 2600 Service Pack 2