There is a represents association in ActivityPartition metaclass in UML 2.0 documentation
represents : Element [0…1] An element constraining behaviors invoked by nodes in the partition.
I guess VP doesn’t support it. Maybe it’s possible to add it in any future release?
I have already passed your need to our developers. When there are any news from them, I will let you know.
Glad to inform you that represents is supported in the latest release. I suppose that you are already using build 20070404. If not, please run the updater to update to that.