Generating simulation using a 3D homogenous elastic model with fault

I’m new in PyLith and would like to know the parameters needed to generate 3D homogenous elastic model with fault. I already generated a mesh using Gmsh.

I recommend starting with working through the example suite (Examples — PyLith 4.0.0 documentation). They build upon one another, progressing from just a 2D or 3D box without a fault using very simple boundary conditions to more complex geometry and fault and boundary conditions. A subset of the examples are discussed in the online tutorials (Geodynamics - Courses: PyLith Tutorials: Offerings).

Thank you @baagaard!