Particles documentation

Hello, please i cant find the folder that has the “particle generation tool” how do i obtain that folder. ALSO I HAVE THIS ERROR MESSAGE Error from cartesian_grid/get_stl_data.f:671 Error: No Cartesian grid boundary condition specified. At least one BC_TYPE must start with CG (for example CG_NSW)

This has been addressed in

Please avoid asking the same question in separate threads, this just makes more work for us. Thanks.