Editing Tips


Here is a list of useful keyboard shortcuts (on Mac OS X, use Cmd key instead of Ctrl):

Key Action
Esc Simple selection mode / exit from dialog window
0 “Any” bond mode
1 Simple/Up/Down/Up or Down bond mode. Multiple pressing switches these types one by one
2 Double/Cis or Trans bond mode. Multiple pressing switches these types one by one
3 Triple bond mode
4 Aromatic bond mode
5 Increase/decrease charge mode. Multiple pressing switches between two modes
T Template mode. Multiple pressing selects different templates one by one
A “Any” atom mode
H H atom mode
C C atom mode
N N atom mode
O O atom mode
S S atom mode
F F atom mode
P P atom mode
Shift+C Cl atom mode
Shift+B Br atom mode
I I atom mode
+ Zoom in
- Zoom out
Ctrl+N New document
Ctrl+O Open/Load
Ctrl+S Save/Export
Ctrl+Z Undo (Redo with Shift pressed)
Ctrl+X Cut
Ctrl+C Copy
Ctrl+V Paste
Ctrl+L Clean up
Ctrl+G S-group tool
Shift+R R-group tool

Note: see the tooltips on buttons to find corresponding shortcuts.

Fast Atom Label Input

Press one of the atom buttons (or the corresponding keyboard shortcut) to change the labels of the selected atoms or, if none are selected, the label of the atom directly under cursor. When Selection mode is active, press and hold the left mouse button on an atom to edit the label in place. Charge can also be specified here, e.g.: N-, C2+, Na.

Properties Dialog

Double click an atom, bond, S-group or other element to edit its properties.

Flipping Stereo Bonds

Repeatedly applying the bond tool with a single stereo-bond (up, down or either) selected will change the bond’s direction.

Chains and Templates

Chains and basic ring templates are available via Chain tool and Template tool. More complex templates can be loaded to clipboard (via the Open File dialog) and pasted to the canvas.