There a number of additional ways you can invoke commands on Mac Rhino besides clicking tool palette buttons or typing a command.
Navigating with a Magic Mouse
To enable this behavior, in Rhinoceros > Preferences > Trackpad, check Use two fingers to pan and rotate viewport views.
You can also assign commands to three-finger or four-finger swipes on the trackpad. In our tests, the four-finger left and right swipes can be unreliable, and the four-finger up and down swipes never work. If you want to try these, remember that the Mac OS X also assigns actions to these gestures, so you will need to disable the OS X settings in System Preferences.
Set the commands to run in Rhinoceros > Preferences > Mouse > Screen Edges. Type the command you want executed when you touch a screen edge.
_-Layer _Visible=_Toggle _Enter: Toggles the Layers panel on and off
ToggleObjectPropertiesPanel: Turns the Properties panel on and off. This is especially useful as a Screen Edge command. For example: In Rhinoceros > Preferences > Mouse on the Screen Edges tab, in the Right edge edit box, type ToggleObjectPropertiesPanel. Touching the right screen edge will then turn the Object Properties panel on and off.
ToggleOsnapPanel: Turns the OSnap panel on and off.
ToggleOsnapPanelUnderCursor: Pops up the OSnaps panel under the cursor, making it easy to change OSnap settings. The panel disappears when you move the cursor off the panel. Assign this command to a mouse button if you have a mouse with more than three buttons, or to a trackpad swipe gesture.
ToggleActiveToolPalettes: The active tool palettes are all the tool palettes (except the Main tool palette) that are currently visible. This command lets you turn those tool palettes on and off.
In Rhinoceros > Preferences > Tool Palettes, the Hide tool palettes when starting commands and the Hide main tool palette when hiding other tool palettes options let you keep tool palettes hidden. The ToggleMainToolPalette and ToggleActiveToolPalettes commands, along with these settings, let you show the tool button palettes only when you need them.
System Preferences > Trackpad > More Gestures
Rhinoceros > Preferences > Trackpad
Rhinoceros > Preferences > Tool Palettes
Rhinoceros > Preferences > Mouse > Screen Edges