The role of the User Working Group is to mold the output of the cyberinfrastructure framework developed by MUSES to facilitate its adoption in various communities. The members of this working group represent a variety of communities that have expressed a direct interest in the outputs of the framework. The scientists involved include heavy-ion physicists, specialists in relativistic hydrodynamics, nuclear astrophysicists, members of the LIGO collaboration, numerical relativists, and also particle physicists. This working group will develop a module to compute transport coefficients in neutron star environments, test the grid size convergence of numerical relativity simulations and relativistic viscous hydrodynamic simulations involving these transport coefficients and also the equation of state created by MUSES.