How to coarse grained cholesterol?

Dear all,
        I want to run Coarse grained simulation about the lipid-polymer complex. However, I don't know clearly about how to build the coarse grained model using "Build mesostructure" and "mesomolecule". After setting the Bead type, how to build the coarse grained model ofor chloresterol? Could anyone give me some help?The pdb file of cholesterol is in attachment.

The next picture is a reference model
Coarse grained model for cholesterol
and this coarse grained model is form the following paper:
A coarse-grained molecular dynamics investigation of the phasebehavior of DPPC/cholesterol mixtures.Chemistry and Physics of Lipids, 2015,185: 88-98.