The new tool is also quite handy when used in combination with a Scope Box. I don't think of one (a scope box) as an model element, not like a door or a wall at least. The tool doesn't mind though. That makes it easy to crop a large model down to just a selected Scope Box. Easy!
Heads Up, it will use the active 3D view if there is one. Just be sure to close the 3D view you don't want to alter or open one you do. If no 3D view is open it will use the default 3D view, yours (the one with your username appended) if you are using worksets.