Various atom properties can be added to an atom.
The property key and the value can be freely set in the Edit Properties dialog. To do this, follow the steps below.
Select an atom in the molecule.
Right-click and choose Edit Properties.
In the dialog box, double-click the blue text field and type the property key then the value. Press Enter after each entry.
If an invalid value is set, (after clicking OK ) the background changes to pink and the wrong input cannot be saved.
The chemical neighborhood for an atom within a query structure can be defined in MarvinSketch.
For the available query atom properties, see the Advanced Tab section and its subsections.