auto_remove_hydrogens (boolean, default: off) controls whether or not hydrogens are automatically removed when building.
editor_auto_dihedral (boolean, default: on) controls whether or not the dihedral value is automatically shown when modifying a dihedral torsion.
editor_auto_origin (boolean, default: on) controls whether or not the origin is automatically set when rotating molecules.
edit_bond_cycle_mode (integer, default: 1): controls the order in which PyMOL cycles bonds: 0 is single, double, triple; 1 is single, aromatic, double, triple, and 2 is single, double, triple, aromatic.
editor_label_fragments (boolean, default: off) not currently functional.
matrix_mode (integer: 0-2, default: 0) affects how objects are transformed and manipulated.
0 = by coordinate
1 = by matrix
secondary_structure (int 1-4, default: 2) Secondary structure phi/psi angle preset with the builder