Tools Toolbar in MarvinSketch

The toolbar consists of various command groups. The tools having exclusively chemical meaning are drawn in black, while tools for drawing graphical objects are in blue.

For example, only one reaction arrow can be drawn on the canvas, but graphical arrows have no limit. These arrows look identical to the reaction arrow.

Toolbar item	Icon	Description
Insert Bond		Places various bond types on the canvas. For more information regarding bonds, see Draw Bonds.
Insert Chain		Places a carbon chain on the canvas. The number of carbon atoms can be increased or decreased by dragging the mouse. Selection between straight or curved chain drawing is also available.
Bold Tool		Thickens the selected bond.
Hashed Bond Tool		Makes the selected bond hashed. It only retains the single original bond type.
Insert Text		Places a text-object on the canvas. Allows changing text properties on the appearing toolbar.
Atom Label Editor		Allows changing the atom label on the canvas. Atom label properties can be set on the appearing toolbar.
Straight Arrow/Reaction/Atom Map		Places various reaction arrows on the canvas. Places + signs when the Automatic Plus Sign in Single Step Reaction checkbox is selected in Edit > Preferences > Structure. For more information, see Creating Reactions.
Create Group		Creates a custom abbreviation group.
Insert Brackets		Places brackets, parentheses, chevrons, or braces on the canvas.
Insert Graphics		Places various graphical objects on the canvas.
Increase Charge		Increases the charge of the selected atom. The number of implicit hydrogens will be adjusted if possible to accommodate the new charge. Valence errors will be highlighted in red.
Decrease Charge		Decreases the charge of the selected atom. The number of implicit hydrogens will be adjusted if possible to accommodate the new charge. Valence errors will be highlighted in red.