what is this panel and how can i make it gone? this panel appeared after i did something what I'm not sure, and also the '~' key stopped working with it. Doe's any one know how can i make it disappear, and make the '~' key back to work again like before? thanks.
Press "T" ("Toolbar") to let it go away. The panel is made for people not know how to enter the displayed modes of manipulating objects.