Context: Right-clicking on an R-group definition label.

| Context menu item | Description | 
|---|---|
| Ungroup | The R-group definition list in question is deceased, but its elements will remain on the canvas. | 
| Duplicate | Takes a copy from the R-group definition in context. | 
| Atom properties | Opens the Atom properties dialog. | 
| Bond properties | Opens the Bond properties dialog which contains bond types and query properties. | 
| Absolute stereo (chiral) | Sets the Absolute chiral flag on every structure on the canvas, indicating that the molecule(s) represent(s) a single, well-defined stereoisomer. | 
| R-logic | Opens the R-logic dialog. | 
{info} The Absolute stereo flag is displayed only when the chiral flag visibility is turned on in View settings dialog.
Context: There is an R-group definition on the canvas and a structure is selected. (This structure can be a part of the definition or another molecule on the canvas.) Right-click on the label of the R-group definition.

| Context menu item | Description | 
|---|---|
| Add to this group | The selected molecules are appended to this particular R-group definition. | 
| Remove from this group | The selected fragments are removed from the R-group definition in question. | 
| Absolute stereo (chiral) | Sets the Absolute chiral flag on every structure on the canvas, indicating that the molecule(s) represent(s) a single, well-defined stereoisomer. | 
| R-logic | Opens the R-logic dialog. | 
{info} The Absolute stereo flag is displayed only when the chiral flag visibility is turned on in View settings dialog.