Markush Toolbar

This toolbar contains funtions that help to work with Markush structures and it is not visible by default.
To make it visible, choose View > Toolbars > Markush.


Position Variation Bond

Creates a variable point of attachment to represent a connection point to a group of atoms.


Frequency Variation

Creates a Repeating Unit with Repetition Ranges.


R-group attachment

Adds an attachment to the structure.