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Mouse Buttons

The mouse is one of the most used tools for using NE1. NE1 makes use of a 3-button mouse to select objects, change the view, and perform other common tasks. Here is a summary of what each mouse button does:

Left: Selects objects in the graphics area, toolbar buttons, menu items and nodes in the Model Tree.
Right: Display context-sensitive menus.
Middle: Zoom, pan and rotate the view.

If your mouse has a wheel, you can push down on it to rotate the view. Scrolling the wheel allows you to zoom in and out on the model. By positioning the mouse pointer on the area you want to zoom in on and scrolling the mouse wheel, you can zoom in on the area quickly.

Mouse Wheel Zooming

Mouse wheel operations for all modes are identical.

Users without a mouse wheel should use the Zoom Tool and Fit to Window (CTRL + F) to zoom in/out

Action	Result
Mouse Wheel	Zoom In/Out
Shift + Mouse Wheel	Quick Zoom (double-speed)
Control + Mouse Wheel	Slow Zoom (half-speed)

See Keyboard Shorts for how to recreate these operations without using the Mouse Wheel

Middle Mouse Button (Viewing Controls)

Middle Mouse Button (MMB) operations for all modes are identical.

Mac users with a single mouse button can hold down the Option key to emulate the MMB.

Action	Result
MMB + Drag	Rotate View Freely
Shift + MMB + Drag	Pan View
Control + MMB + Drag	Rotate Around Point of View Axis
Shift + Control + MMB + Drag	Move Point of View In/Out

Right Mouse Button (Context Menus)

Right Mouse Button operations for all modes are identical. It simply brings up the mode specific context menu. In Build Mode, different context menus are provided when the cursor is over an open bond, a bond between two atoms or when an atom is highlighted.

Mac users with a single mouse button can hold down the Control key to emulate the RMB.

Left Mouse Button (Selection)

Left Mouse Button (LMB) operations will change according to the current mode. Mode specific operations are given below.

Default (Select) Mode

Positioned on:	No modkey	Shift	Control	Shift+Control
empty space
click	clear selection	nil	nil	nil
double-click	clear selection	nil	nil	nil
click-drag	clear selection; select 2D region	select 2D region	deselect 2D region	delete 2D region
atom or bond of Chunk
click	clear selection; select chunk	select chunk	deselect chunk	delete chunk
double-click	clear selection; select chunk; switch to Build Atoms mode	select chunk; switch to Build Atoms mode	deselect chunk; switch to Build Atoms mode	delect chunk; switch to Build Atoms mode
click-drag	clear selection; select 2D region	select 2D region	deselect 2D region	delete 2D region
jig*
click	clear selection; select jig	select jig	deselect jig	delete jig
double-click	clear selection; select jig; switch to Move Chunks mode	select jig; switch to Move Chunks mode	deselect jig; switch to Move Chunks mode	delete jig; switch to Move Chunks mode
click-drag	clear selection; select 2D region	select 2D region	deselect 2D region	delete 2D region

* jigs cannot be selected/deselected when selecting 2D regions

Build Atoms

Positioned on:	No modkey	Shift	Control	Shift+Control
empty space
click	clear selection	nil	nil	nil
double-click	clear selection; deposit unselected	deposit selected	deposit unselected	nil
click-drag	clear selection; select 2D region	select 2D region	deselect 2D region	delete 2D region
atom
click	clear selection; select atom	select atom	deselect atom	delete atom
double-click	clear selection; trans-select atoms	trans-select atoms	trans-deselect atoms	trans-delete atoms
click-drag unselected	clear selection; select atom; drag atom	select atom; select 2D region	deselect 2D region	delete 2D region
click-drag selected	drag selection	select 2D region	deselect 2D region	delete 2D region
bond
click	clear selection; select bond's atoms	select bond's atoms	deselect bond's atoms	delete bond's atoms
double-click	clear selection; trans-select bond's atoms	trans-select bond's atoms	trans-deselect bond's atoms	trans-delete bond's atoms
bondpoint
click or double-click	clear selection; deposit unselected	deposit selected	deposit unselected	nil
click-drag	drag bondpoint	select 2D region	deselect 2D region	delete 2D region
jig
click	clear selection; select jig	select jig	deselect jig	delete jig
double-click	clear selection; select jig and jig's atoms	select jig and jig's atoms	deselect jig and jig's atoms	delete jig and jig's atoms
click-drag unselected	clear selection; select jig; drag jig	select jig; select 2D region	deselect 2D region	delete 2D region
click-drag selected	drag selection	select 2D region	deselect 2D region	delete 2D region

Move (Translate and Rotate) Modes

Positioned on:	No modkey	Shift	Control	Shift+Control
empty space
click	clear selection	nil	nil	nil
double-click	clear selection	nil	nil	nil
click-drag	drag selection* (in plane of screen)	rotate/translate selection (constrained)	rotate selection (unconstrained)	delete 2D region
atom or bond
click	clear selection; select chunk	select chunk	deselect chunk	delete chunk
double-click	clear selection; select chunk; switch to Build Atoms mode	select chunk; switch to Build Atoms mode	deselect chunk; switch to Build Atoms mode	delect chunk; switch to Build Atoms mode
click-drag	drag selection (in plane of screen)	rotate/translate selection (constrained)	rotate selection (unconstrained)	delete 2D region
jig*
click	clear selection; select jig	select jig	deselect jig	delete jig
double-click	clear selection; select jig; switch to Move Chunks mode	select jig; switch to Move Chunks mode	deselect jig; switch to Move Chunks mode	delete jig; switch to Move Chunks mode
click-drag	drag selection (in plane of screen)	rotate/translate selection (constrained)	rotate selection (unconstrained)	delete 2D region

* jigs cannot be selected/deselected when selecting 2D regions

You can constrain translation and rotation by pressing the following keys:

X – constrain translation/rotation around the X axis.

Y - constrain translation/rotation around the Y axis.

Z - constrain translation/rotation around the Z axis.

A - constrain translation/rotation around the selected objects own axis.

Build Crystal

While in Build Crystal, selection of chunks or jigs from the 3D workspace is not permitted. You can select chunks and jigs from the Model Tree, however.

Action	Result	Description
LBM + Drag	Start New Selection	Clears the current selection and starts a new lattice selection.
Shift + LMB + Drag	Add To Selection	Adds new lattice selection to the current selection.
Control + LMB + Drag	Subtract From Selection	Removes new lattice selection from the current selection.
Shift + Control + LMB + Drag	Subtract From Selection	Removes new lattice selection from the current selection.

Tools > Extrude

While in Extrude, selection of chunks or jigs from the 3D workspace is not supported. You can select chunks and jigs from the Model Tree, however.

Action	Result	Description
LBM + Drag	Move	Moves a Repeat Unit, which is one of the extrude copies of the original chunk to be extruded. The cursor must point on any of the atom centers of the repeat units in order to move them. This is useful for connecting repeat units together in a chain, resulting in an extruded chunk.

Movie Player Mode

Left mouse controls are not available in this mode. You can select chunks and jigs from the Model Tree, however.