RECTANGLE TOOL: click and drag to select atoms

ADD/DELETE BOND TOOL: Click on atom 1; (shift-click for auto-bonding)

ARROW TOOL: Select/de-select atoms; click & drag to move selection

Sorry, but the lattice plane tool can only be used for crystals - not for molecules.

Centring the plot…

Auto-scaling to fit the plot window…

LASSO TOOL: Click & drag to select a region

POLYGON TOOL: Click to begin defining a polygon region

ZAPPER TOOL: Click on an atom to hide it

TORSION ANGLE TOOL: Click on the first atom

BOND ANGLE TOOL: Click on the first atom

ANGLE TOOL: Click at the first point

BOND DISTANCE TOOL: Click on an atom

DISTANCE TOOL: Click at the first point

PLANE TOOL: click & drag to move plane. (Option-click to rotate plane.)

TEXT TOOL: Click to create or edit a text box

INFO TOOL: Click an atom; option-click for more info.

MAGNIFY TOOL: Click to magnify; shift-click to reduce

MOVE TOOL: Click & drag to move the model

ROTATE SELECTION TOOL: click & drag to rotate selected atoms only

ROTATE TOOL: Click & drag to rotate the model