Context: Right-clicking on an empty place on the canvas.

Absolute stereo (chiral)*: Sets the "Absolute" chiral flag on the entire structure, indicating that the molecule represents a single, well-defined stereoisomer.

Context: Right-clicking on an empty place when there is at least one R-group definition on the canvas.

Absolute stereo (chiral)*: Sets the "Absolute" chiral flag on the entire structure, indicating that the molecule represents a single, well-defined stereoisomer.

R-logic: Opens R-logic dialog.

*Absolute stereo flag is displayed only when the chiral flag visibility is turned on in View Settings dialog.