I just had someone ask me this question last week. Bottom line it's no longer combined in the model tree. It's not as convientent. I know of know way to turn the previous functionality back on.
In the model tree, you can show dimensions for a part or feature, but they show up in any view they want.
[cid:image001.png@01CDF87D.25C0B880]
From the Drawing Tree, you can show dimensions for the view, but you get all dimension valid for that view.
[cid:image002.png@01CDF87D.25C0B880]
In both cases you get a dialog that lets you check mark which dimension to keep.
[cid:image003.png@01CDF87D.25C0B880]
David Haigh