That's funny....I didn't know the Help still said it was able to do
this...anyway, Adesk broke this when programming Assembly Features. I will be
back in next release. In the meantime, use Kathy J. 's workaround:
"Make a dummy assembly and place your working assembly in as the first and
ground. Now place your components into the dummy assembly. Don't constrain.
Now Drag and Drop them into your working assembly at the point in the browser
that you want (they won't end up at the bottom of the list). Now edit your
working assembly and constrain."
--
Dave Jacquemotte
Automation Designer