%Exclusive%: C  H  N  O  %Additive%: %All%  C  H  N  O  %Selection%: %Invert% | %Deselect% | %Delete% | %Previous% %Select atoms where% U_iso $spy.MakeActiveGuiButton(button_tiny-go,'sel atoms where xatom.uiso getvalue\(compare) getvalue\(uiso)&&xatom.type!='Q'',GO_SELECT) %Phenyl%  %Pyridine%