Open the “Environment configuration” window

Go back to the 3D window of the \(g\)-SiO\(_2\) model, for clarity purpose change color map to standard chemical species: from the "OpenGL -> Color Scheme(s)" menu, or press a as many times as required. Then open the "Environments configuration" window: from the "Chemistry" menu or press Ctrl+e, and open the tab labelled "King’s ring(s)[KR]".

This tab provides interactors with King’s ring statistics calculation results: color of the ring’s polyhedra, and then options to show/hide, label/unlabel, or select/unselect atom(s) involved in any ring(s) of the corresponding size.