The Mouse preferences control mouse operation for selecting and dragging.
Mouse group select
Specifies how dragging to select works.
Always uses a crossing selection unless you use SelWindow command.
Always uses a window selection unless you use SelCrossing command.
Force a window/crossing/combo selection any time by pressing Option and dragging with the left mouse button. This lets you start your window/crossing very near objects that would otherwise be selected by a single pick.
Choose what action is performed either by clicking the middle mouse button on a three-button mouse or by pressing the wheel on a wheeled mouse.
Pops up two-part menu at the cursor location. You can list your favorite commands in the top section. The bottom section is the list of most recent commands used.
Choose a toolbar to pop up at the cursor location. Create a toolbar containing your favorite commands or object snaps to use as a pop-up toolbar.
Lists a series of commands that run when you click the middle mouse button.
Click and hold to access the default middle button actions: Popup menu, Popup this toolbar, or Run this macro.
Pans the view.
Rotates the view.
Click and drag
Lets you drag just the objects that are already selected. Enabling this option can prevent accidental dragging.
The distance in pixels you must drag control points before the drag initiates. Set to higher values for high-resolution display. This helps prevent accidental dragging.
The distance in pixels you must drag objects before the drag initiates. Set to higher values for high-resolution display. This helps prevent accidental dragging.
Right mouse button
Displays a context menu with right mouse click and hold.
Number of milliseconds you must click and hold the right mouse button to display the context menu.
If your mouse has more than the default three buttons, you can add commands or macros to the buttons.
Commands for additional mouse buttons
Write macros to apply to the buttons.
See: Rhino Scripting.
You can program actions that happen when you touch the edge of the screen with the mouse.
Program the action for the main screen edges.
Write macros to apply to the screen edges.
See: Rhino Scripting.
If you are using two monitors, program the action for the secondary screen edges.
If you use an Apple Magic Mouse, you can enable gestures for navigation.