My PyMOLRC.pml file.

stereoize

• Enable anaglyph stereo.
• Change background to grey to prevent color to be washed away.

mkactive

• Select amono acids within 3 A of ligand.

axis

• Draw a 3d axis on the desired object.

label_ca

• Label number and type of selected amino acids on C.a.

centroid

• Calculate centroid for selected atoms.