How to move an sub assy up in the tree with other sub assys in SW

I can drag an item in the tree of SW any where I want as long as it isn't an assy or if the part is going next to a sub assy.
If I drag it next to a sub assy it thinks I want it to be apart of that sub assy.
3 Answers

It's the alt key. If you alt-drag the part over the assembly name, you will see the icon change to an arrow just like you see when reordering parts.