Keyboard and command-line modifiers

Specify a distance and angle

To pick a location

Ortho (direction lock)

• Press the Shift key to lock the cursor to 90-degree increments.

Specify a command-line option

Alt key

• While dragging an object or gumball widget, tap to Copy the object.
• Starts a combo selection if an object is not being dragged and an object snap is not active.
• Temporarily enables disabled object snaps.
• While dragging, press to suspend object snaps.
• Suspends Polyline, Curve, and InterpCrv autoclose.
• Makes arrow keys nudge selected objects.

Ctrl key

• Modifier for view navigation.
• Prevent toolbar from docking.
• Initiate elevator mode.
• Capture and release SmartPoints.
• Relocate the gumball widget.

Esc key

• Cancels a command.
• Clears the command prompt.
• Deselects all selected objects.
• Turns off control and edit point display.
• Clears the selection menu.
• Restores the Rhino window from FullScreen mode.

Shift key

• Toggles Ortho mode
• Constrains view and camera rotation to horizontal or vertical
• Controls symmetry in the BlendSrf command

Enter

To accept command-line input, do one of the following:

• Press the Enter key
• Press the Spacebar.
• Click the right mouse button .

To select objects

• Click the object.
• Drag right to left for a crossing selection.
  
• Drag left to right for a window selection.
  
• When multiple objects can be selected, press Enter when you are done selecting.

To select sub-object parts with a mouse

For many commands, you can select sub-parts of objects or specified object types to allow you to restrict selection in a tight area.

• Ctrl + Shift + Left mouse click, window, or crossing.