Zoom > Extents

`Ctrl` + `Shift` + `E`

All hotkeys for Rhino (Windows)

Navigation Shortcuts Pan parallel views	`Mouse Rotate`
Navigation Shortcuts Press Shift to constrain to view rotation to horizontal or vertical	`Shift` + `Mouse Rotate`
Navigation Shortcuts Zoom view in/out	`Mouse Wheel`
Navigation Shortcuts Pop up toolbar	`Mouse Click`
Navigation Shortcuts Next viewport active. Cycles through layout pages if a layout is active and through model viewports if model space is active	`Ctrl` + `Tab`
Navigation Shortcuts Pan view out	`Ctrl` + `PageDn`
Navigation Shortcuts Pan view in	`Ctrl` + `PageUp`
Navigation Shortcuts Pan view in/out	`Alt` + `Mouse Wheel`
Navigation Shortcuts Pan any view	`Shift` + `Mouse Rotate`
Navigation Shortcuts Zoom view in/out	`Ctrl` + `Mouse Rotate`
Navigation Shortcuts TiltView	`Shift` + `Alt` + `Mouse Roate`
Navigation Shortcuts TiltView right	`Ctrl` + `Shift` + `PageDn`
Navigation Shortcuts TiltView left	`Ctrl` + `Shift` + `PageUp`
Navigation Shortcuts Adjust camera lens length in a perspective view	`Ctrl` + `Shift` + `Alt` + `Mouse Rotate`
Navigation Shortcuts Adjust camera lens length in a perspective view (toward telephoto)	`Shift` + `Alt` + `PageUp`
Navigation Shortcuts Adjust camera lens length in a perspective view (toward wide angle)	`Shift` + `Alt` + `PageUp`
Navigation Shortcuts RotateCamera	`Ctrl` + `Alt` + `Shift` + `Mouse Rotate`
Navigation Shortcuts Adjust camera lens length in a perspective view	`Ctrl` + `Shift` + `Mouse Rotate`
Navigation Shortcuts Force parallel view to rotate	`Ctrl` + `Shift` + `Mouse Rotate`
Navigation Shortcuts Constrain to view rotation to horizontal or vertical	`Ctrl` + `Shift` + `Mouse Rotate`
Selection Shortcuts Add crossed / windowed objects to selection	`Shift` + `Mouse Click`
Selection Shortcuts Select polysurface/surface faces, edges, boundaries, mesh faces or edges, and objects within groups	`Ctrl` + `Shift` + `Mouse Click`
Selection Shortcuts Remove object from selection	`Ctrl` + `Mouse Click`
Selection Shortcuts Remove crossed / windowed objects from selection	`Ctrl` + `Mouse Click`
Default Shortcuts Help	`F1`
Default Shortcuts CommandHistory	`F2`
Default Shortcuts Properties	`F3`
Default Shortcuts Toggle Camera	`F6`
Default Shortcuts Grid > ShowGrid > ShowGridAxes	`F7`
Default Shortcuts Toggle Ortho	`F8`
Default Shortcuts Toggle Snap	`F9`
Default Shortcuts Points On	`F10`
Default Shortcuts Points Off	`F11`
Default Shortcuts Dig Click	`F12`
Default Shortcuts SetMaximizedViewport > Top	`Ctrl` + `F1`
Default Shortcuts SetMaximizedViewport > Front	`Ctrl` + `F2`
Default Shortcuts SetMaximizedViewport > Right	`Ctrl` + `F3`
Default Shortcuts SetMaximizedViewport > Perspective	`Ctrl` + `F4`
Default Shortcuts Select All	`Ctrl` + `A`
Default Shortcuts Block	`Ctrl` + `B`
Default Shortcuts Copy To Clipboard	`Ctrl` + `C`
Default Shortcuts Find Text	`Ctrl` + `F`
Default Shortcuts Group	`Ctrl` + `G`
Default Shortcuts Hide	`Ctrl` + `H`
Default Shortcuts Insert	`Ctrl` + `I`
Default Shortcuts Join	`Ctrl` + `J`
Default Shortcuts Lock	`Ctrl` + `L`
Default Shortcuts Max View port	`Ctrl` + `M`
Default Shortcuts New	`Ctrl` + `N`
Default Shortcuts Open	`Ctrl` + `O`
Default Shortcuts Print	`Ctrl` + `P`
Default Shortcuts Save	`Ctrl` + `S`
Default Shortcuts Trim	`Ctrl` + `T`
Default Shortcuts Paste	`Ctrl` + `V`
Default Shortcuts Zoom	`Ctrl` + `W`
Default Shortcuts Cut	`Ctrl` + `X`
Default Shortcuts Redo	`Ctrl` + `Y`
Default Shortcuts Undo	`Ctrl` + `Z`
Default Shortcuts Zoom > Extents	`Ctrl` + `Shift` + `E`
Default Shortcuts Ungroup	`Ctrl` + `Shift` + `G`
Default Shortcuts Show Selected	`Ctrl` + `Shift` + `H`
Default Shortcuts Unlock Selected	`Ctrl` + `Shift` + `L`
Default Shortcuts Split	`Ctrl` + `Shift` + `S`
Default Shortcuts Zoom All Extents	`Ctrl` + `Alt` + `E`
Default Shortcuts Set Display Mode Ghosted	`Ctrl` + `Alt` + `G`
Default Shortcuts Show	`Ctrl` + `Alt` + `H`
Default Shortcuts Unlock	`Ctrl` + `Alt` + `L`
Default Shortcuts SetDisplayMode > Rendered	`Ctrl` + `Alt` + `R`
Default Shortcuts SetDisplayMode > Shaded	`Ctrl` + `Alt` + `S`
Default Shortcuts SetDisplayMode > Wireframe	`Ctrl` + `Alt` + `W`
Default Shortcuts SetDisplayMode > XRay	`Ctrl` + `Alt` + `X`
Default Shortcuts Undo View	`Home`
Default Shortcuts Redo View	`End`
Default Shortcuts CPlane > Undo	`Shift` + `Home`
Default Shortcuts CPlane > Redo	`Shift` + `End`
Default Shortcuts ZoomLens > In	`Shift` + `PageUp`
Default Shortcuts ZoomLens > Out	`Shift` + `PageDn`
Default Shortcuts Pan > In	`Ctrl` + `PageUp`
Default Shortcuts Pan > Out	`Ctrl` + `PageDn`
Default Shortcuts TiltView > Left	`Shift` + `Ctrl` + `PageUp`
Default Shortcuts TiltView > Right	`Shift` + `Ctrl` + `PageDown`