COMPUTER AIDED ARCHITECTURAL DESIGN
Basic Rhino Commands

Operation Tool

Graphic Primitives

Polyline
Line *
Circle
Arc

* locate the Line tool in the sub-menu of Polyline tool

Manipulating Elements

Copy
Move
Scale
Rotate
Mirror *

* locate the Mirror tool in the sub-menu of the Rotate tool

View Control

Zoom In (drag up)
Zoom Out (drag down) 
Zoom by Window
Zoom Extents
Rotate View
Pan