This "one" button works fine. Thanks.
And the Isolate and Semi-Transparent things worked too, a few more clicks than SolidWorks though.
Now another unconvenient thing for me.
In SW, when you make sketch, you can make any existing geometry as reference and snap to that, if some geometry is hidden, just turn shaded view to wire frame and you can snap to that hidden geometry. That function I used everyday conveniently.
But in Pro/E, I cannot snap to those geometry by default, I have to create Sketch References first. That really slows down my design. Any way to make it like the way SW does?