[Chimera-users] how to not include CONECT, RIBBON, HELIX, SHEET keywords in a pdb when saving from the pdb file dialog

Hi, I was wondering how it might be possible to not include the CONECT, RIBBON, HELIX, or SHEET keywords in a pdb when saving from the save pdb file dialog? It can be done using "pdbrun nouser cat | grep -v HELIX | grep -v SHEET" ...etc but I can't save the pdb model relative to another model on the screen using that command. Thanks, Sabuj Pattanayek