The 3D toolbar contains frequently used settings for 3D plots. It is intended for the waterfall plot type, but can also be used with the other plot types. But 3D must first be turned on (e.g. from Plot->Layout->Edit...).
Normal.
Rotate.
Move.
Zoom.
Depth.
Click this to remove the toolbar.
Plot->Layout->Edit....
Field for displaying rotation, offset and zooming.