Oh boy I have lots of complaints today to get off my chest.
Moving parts in the FeatureManager has some issues.
For one, here is a situation where I can't remove a part from a folder.
In this case I want to move the indicated Part out of its folder and back into the 'root' of the assembly. That is not possible because when I try to drag it down I get the no-smoking symbol because it thinks I'm trying to move a part into the Mates section. Try to move it anywhere else and it ends up in a different folder or inside my Master Sketch Assembly.
I could use a workaround where I add a new part, then drag the real part on top of the dummy part, but why should I have to do that? I should be able to drag the part into empty space below Mates, or something like that, and it pops out of its folder.