“clip” alters the positions of the clipping planes.

clip mode, distance [, selection [, state ]]

mode = near, far, move, slab, or atoms

distance is a floating point value

selection = atom selection (for mode=atoms only)

clip near, -5           # moves near plane away from you by 5 A 
clip far, 10            # moves far plane towards you by 10 A 
clip move, -5           # moves the slab away from you by 5 A 
clip slab, 20           # sets slab thickness to 20 A 
clip slab, 10, resi 11  # clip 10 A slab about residue 11 

clip atoms, 5, pept     # clip atoms in "pept" with a 5 A buffer 
                        # about their current camera positions 

zoom | orient | reset | cmd.clip | commands