Gnome 3.8: Nautilus: how to add up button to toolbar and stop move left/right status bar

[Dario Lesca]

Gnome 3.8 / File (ex nautilus):

a) how to add up button to toolbar (Hot key ALT + UP-ARROW)
b) stop move left/right status bar and add the free space of folder

There is some way to resolve this annoying missing features of nautilus
3.8.2?

Many thanks