[Chimera-users] addna?

Dear all, I would like to know if there is a way in chimera to add nucleic acid to an existing RNA. Something like addna instead of addaa. many thanks Julien -- European Molecular Biology Laboratory Structural and Computational Biology Unit Meyerhofstraße 1 D-69117 Heidelberg Max-Planck-Institute for Biophysical Chemistry NMR based Structural Biology Am Fassberg 11 D-37077 Göttingen