[Chimera-users] delete model

Dear Chimera team, I have used the multiscale model for generating a surfacic model of (pdb) file 1YAU.mmol (from pdb sum). Two models are displayed (see attached image): one is an all-atom model and the other is the surfacic model. I would like to know : - how to delete the all-atom model in order to export in the vrml format only the surfacic model (the two-model scene is fast for exporting but very long for opening in software like 3DSmax) ? - why, sometimes, are displayed in the same view the surfacic model as well as the original structure ? My best regards Damien