[Chimera-users] Visualizing inertia axes as arrows

Hi everybody, Lately, I have been using "measure inertia" command a lot. For my purposes I needed to visualize the inertia axes as arrows instead of the default ellipsoid. I used the vectors from the reply log to write BILD files defining the arrows for the inertia axes. Is there an easy way to script just that? Or differently, is there an easy way to visualize as arrows inertia axes for peptide planes in a protein? Any tips would be appreciated. Thanks, Józef