= Chimera 2 cellPACK Features =

 * Open cellPACK models, fetching JSON files from web.
 * Open collada surface files used to represent cellPACK molecules.
 * Hierarchical collapsible list of model components, checkbuttons for display
 * Clipping that hides whole molecules (instead of cutting them).
 * Simple interface to run cellPACK, place molecules on a surface or within a surface.
 * Export low resolution surfaces (hundreds of triangles) for pdb models.
 * Export multi-sphere bounds file for molecular components.