When "a client interacts with the elements of a collection, you can use a multiobject" (src), drawn like so:
In my Visual Studio 2010 Ultimate, I have no option to make a "participant" part of a collection. See this screenshot featuring part of my UML drawing board to the left and all available settings in the properties window to the right:
So, how do I draw a MultiObject in VS 2010?
Note: A complete set of tags for this questions should include
multiobject too, but I have a too low reputation to be able to create new tags. My apologies.