Keywords: generic chemdrawjs signals notebook drawing r group atom labels
Details: When trying to use the generic atom labels available in ChemDraw Desktop, you will find the same context menu does not exist in Chemdraw JS / Signals Notebook, you can still use the same labels manually with the Text tool:
A: Represents any non hydrogen.
M: Represents a metal.
Q: Represents an atom that is neither hydrogen nor carbon.
X: Represents any halide.
R: Unrestricted; represents one or more connected atoms of any kind.